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Operation Ten-Go

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124-415: [REDACTED] Fifth Fleet Second Sino-Japanese War Operation Ten-Go ( 天号作戦 , Ten-gō Sakusen ) , also known as Operation Heaven One (or Ten-ichi-gō 天一号), was the last major Japanese naval operation in the Pacific Theater of World War II . In April 1945, the Japanese battleship  Yamato , the largest battleship in the world, and nine other Japanese warships, embarked from Japan for

248-566: A lower house based on population; and the Senate , an upper house based on equal representation for each state. Federalism provides substantial autonomy to the 50 states, while the country's political culture promotes liberty , equality , individualism , personal autonomy , and limited government . One of the world's most developed countries , the United States has had the largest nominal GDP since about 1890 and accounted for over 15% of

372-562: A " Special Relationship " with the United Kingdom and strong ties with Canada , Australia , New Zealand , the Philippines , Japan , South Korea , Israel , and several European Union countries ( France , Italy , Germany , Spain , and Poland ). The U.S. works closely with its NATO allies on military and national security issues, and with countries in the Americas through

496-465: A career fighting the battleship admirals who had steered the navy’s thinking for most of the current century. One of those was his immediate superior, Raymond Spruance. Mitscher felt a stirring of battleship versus aircraft carrier rivalry. Though the carriers had mostly fought the great battles of the Pacific, whether air power alone could prevail over a surface force had not been proven beyond all doubt. Here

620-409: A contingency, Spruance ordered Deyo to assemble a force of six fast battleships, seven cruisers and 21 destroyers to prepare for a surface engagement with Yamato should the airstrikes prove unsuccessful. Around noon, the first American aircraft arrived over Yamato ; these were F6F Hellcat and F4U Corsair fighters conducting a fighter sweep of any Japanese aircraft defending the battle group; however,

744-533: A coordinated, continent-wide military effort. Finally, deteriorating relations between the British military establishment and the colonists, relations that were already less than positive, set the stage for further distrust and dislike of British troops. Following their victory in the French and Indian War, Britain began to assert greater control over local colonial affairs, resulting in colonial political resistance ; one of

868-522: A decentralized government that operated until 1789. After the British surrender at the siege of Yorktown in 1781 American sovereignty was internationally recognized by the Treaty of Paris (1783), through which the U.S. gained territory stretching west to the Mississippi River, north to present-day Canada, and south to Spanish Florida . The Northwest Ordinance (1787) established the precedent by which

992-407: A few prominent industrialists , largely by their formation of trusts and monopolies to prevent competition. Tycoons led the nation's expansion in the railroad , petroleum , and steel industries. The United States emerged as a pioneer of the automotive industry . These changes were accompanied by significant increases in economic inequality , slum conditions , and social unrest , creating

1116-616: A founding member of the World Bank , Organization of American States , NATO , and the United Nations , as well as a permanent member of the UN Security Council . The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan , a Continental Army aide to General George Washington , wrote to Joseph Reed , Washington's aide-de-camp , seeking to go "with full and ample powers from

1240-579: A party for the crew for the evening of 5 April, during which many of the officers and sailors drank heavily. The United States Navy was able to monitor preparations for Operation Ten-Go by decoding Japanese radio signals. Through this source, the Americans received conclusive intelligence on 5 and 6 April that the attack was to be attempted. Admiral Raymond Spruance , commander of the United States Fifth Fleet , ordered his forces to prepare to attack

1364-583: A period of heightened, overt racism following Reconstruction, a time often called the nadir of American race relations . A series of Supreme Court decisions, including Plessy v. Ferguson , emptied the Fourteenth and Fifteenth Amendments of their force, allowing Jim Crow laws in the South to remain unchecked, sundown towns in the Midwest, and segregation in communities across the country , which would be reinforced by

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1488-488: A prominent leader in the early 1960s. The Great Society plan of President Lyndon Johnson 's administration resulted in groundbreaking and broad-reaching laws, policies and a constitutional amendment to counteract some of the worst effects of lingering institutional racism . The counterculture movement in the U.S. brought significant social changes, including the liberalization of attitudes toward recreational drug use and sexuality . It also encouraged open defiance of

1612-518: A sense of manifest destiny . The Missouri Compromise attempted to balance the desire of northern states to prevent the expansion of slavery into new territories with that of southern states to extend it, admitting Missouri as a slave state and Maine as a free state. It further prohibited slavery in all other lands of the Louisiana Purchase north of the 36°30′ parallel . As Americans expanded further into land inhabited by Native Americans,

1736-603: A sense of American identity as well. Men who otherwise never left their own colony now traveled across the continent to fight alongside men from decidedly different backgrounds but who were no less "American". British officers trained American officers for battle, most notably George Washington ; these officers would lend their skills and expertise to the colonists' cause during the American Revolutionary War to come. In addition, colonial legislatures and officials found it necessary to cooperate intensively in pursuit of

1860-611: A status solidified after its involvement in World War I . After Japan 's attack on Pearl Harbor in December 1941, the U.S. entered World War II . Its aftermath left the U.S. and the Soviet Union as the world's two superpowers and led to the Cold War , during which both countries struggled for ideological dominance and international influence . Following the Soviet Union's collapse and

1984-610: A suicide attack on Allied forces engaged in the Battle of Okinawa . The Japanese force was attacked by U.S. carrier-borne aircraft before it could reach Okinawa ; Yamato and five other Japanese warships were sunk. The battle demonstrated U.S. air supremacy in the Asiatic-Pacific Theater and the vulnerability of surface ships without air cover to aerial attack. The battle also exhibited Japan's willingness to make extreme sacrifices in kamikaze attacks aimed at delaying

2108-401: A year). Juvenile correctional facilities are operated by local or state governments and serve as longer-term placements for any minor adjudicated as delinquent and ordered by a judge to be confined. As of January 2023, the United States has the sixth-highest per capita incarceration rate in the world—531 people per 100,000 inhabitants—and the largest prison and jail population in

2232-566: Is a country primarily located in North America . It is a federal union of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the states of Alaska to the northwest and the archipelagic Hawaii in the Pacific Ocean . The United States also asserts sovereignty over five major island territories and various uninhabited islands . The country has

2356-571: Is believed to be the first widespread culture in the Americas. Over time, indigenous North American cultures grew increasingly sophisticated, and some, such as the Mississippian culture , developed agriculture , architecture , and complex societies . In the post-archaic period , the Mississippian cultures were located in the midwestern , eastern , and southern regions, and the Algonquian in

2480-492: Is known as the presidential system , in contrast to the parliamentary system , where the executive is part of the legislative body. Many countries around the world imitated this aspect of the 1789 Constitution of the United States , especially in the Americas. The Constitution is silent on political parties. However, they developed independently in the 18th century with the Federalist and Anti-Federalist parties. Since then,

2604-438: Is now the United States experienced conflicts with Native Americans, they also engaged in trade, exchanging European tools for food and animal pelts. Relations ranged from close cooperation to warfare and massacres. The colonial authorities often pursued policies that forced Native Americans to adopt European lifestyles, including conversion to Christianity. Along the eastern seaboard, settlers trafficked African slaves through

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2728-542: Is the federal agency charged with addressing most environmental-related issues . The idea of wilderness has shaped the management of public lands since 1964, with the Wilderness Act . The Endangered Species Act of 1973 provides a way to protect threatened and endangered species and their habitats. The United States Fish and Wildlife Service implements and enforces the Act. In 2024, the U.S. ranked 34th among 180 countries in

2852-569: The Allied advance upon the Japanese home islands . Furthermore, the engagement was also paramount by enabling U.S. forces to prevent Japan from holding a significant advantage over the Allies at Okinawa. The designation of Yamato as a beached fortification against Allied aerial and naval bombardment of Okinawa would have become detrimental towards the invading armies, in that, alike to Operation Downfall ,

2976-584: The Allies of World War I , helping to turn the tide against the Central Powers . In 1920, a constitutional amendment granted nationwide women's suffrage . During the 1920s and '30s, radio for mass communication and the invention of early television transformed communications nationwide. The Wall Street Crash of 1929 triggered the Great Depression , which President Franklin D. Roosevelt responded to with

3100-548: The Atlantic slave trade . The original Thirteen Colonies that would later found the United States were administered as possessions of Great Britain , and had local governments with elections open to most white male property owners . The colonial population grew rapidly, eclipsing Native American populations; by the 1770s, the natural increase of the population was such that only a small minority of Americans had been born overseas. The colonies' distance from Britain allowed for

3224-529: The Environmental Performance Index . The country joined the Paris Agreement on climate change in 2016 and has many other environmental commitments. The United States is a federal republic of 50 states and a separate federal capital district, Washington, D.C. It also asserts sovereignty over five unincorporated territories and several uninhabited island possessions . The U.S. is

3348-493: The Federal Bureau of Investigation (FBI) and the U.S. Marshals Service have national jurisdiction and specialized duties, such as protecting civil rights , national security and enforcing U.S. federal courts ' rulings and federal laws. State courts conduct most civil and criminal trials, and federal courts handle designated crimes and appeals of state court decisions . There is no unified "criminal justice system" in

3472-688: The Great Lakes , Mississippi River and Gulf of Mexico . British colonization of the East Coast began with the Virginia Colony (1607) and Plymouth Colony (1620). The Mayflower Compact and the Fundamental Orders of Connecticut established precedents for representative self-governance and constitutionalism that would develop throughout the American colonies. While European settlers in what

3596-701: The Great Lakes region and along the Eastern Seaboard , while the Hohokam culture and Ancestral Puebloans inhabited the southwest . Native population estimates of what is now the United States before the arrival of European immigrants range from around 500,000 to nearly 10 million. Christopher Columbus began exploring the Caribbean for Spain in 1492, leading to Spanish-speaking settlements and missions from Puerto Rico and Florida to New Mexico and California . France established its own settlements along

3720-580: The Midwest . At the same time, about one million French Canadians migrated from Quebec to New England . During the Great Migration , millions of African Americans left the rural South for urban areas in the North. Alaska was purchased from Russia in 1867. The Compromise of 1877 effectively ended Reconstruction and white supremacists took local control of Southern politics . African Americans endured

3844-672: The National Park Service and other agencies. About 28% of the country's land is publicly owned and federally managed, primarily in the Western States . Most of this land is protected , though some is leased for commercial use, and less than one percent is used for military purposes. Environmental issues in the United States include debates on non-renewable resources and nuclear energy , air and water pollution , biodiversity , logging and deforestation , and climate change . The U.S. Environmental Protection Agency (EPA)

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3968-583: The New Deal , a series of sweeping programs and public works projects combined with financial reforms and regulations . All were intended to protect against future economic depressions. Initially neutral during World War II , the U.S. began supplying war materiel to the Allies of World War II in March 1941 and entered the war in December after the Empire of Japan 's attack on Pearl Harbor . The U.S. developed

4092-759: The Organization of American States and the United States–Mexico–Canada Free Trade Agreement . In South America, Colombia is traditionally considered to be the closest ally of the United States. The U.S. exercises full international defense authority and responsibility for Micronesia , the Marshall Islands , and Palau through the Compact of Free Association . It has increasingly conducted strategic cooperation with India , but its ties with China have steadily deteriorated. Since 2014,

4216-638: The Pentium microprocessor in accordance with Moore's law , rechargeable lithium-ion batteries , the first gene therapy trial, and cloning either emerged in the U.S. or were improved upon there. The Human Genome Project was formally launched in 1990, while Nasdaq became the first stock market in the United States to trade online in 1998. In the Gulf War of 1991, an American-led international coalition of states expelled an Iraqi invasion force that had occupied neighboring Kuwait . The September 11 attacks on

4340-576: The Spanish–American War . (The Philippines was granted full independence from the U.S. on July 4, 1946, following World War II. Puerto Rico and Guam have remained U.S. territories.) American Samoa was acquired by the United States in 1900 after the Second Samoan Civil War . The U.S. Virgin Islands were purchased from Denmark in 1917. The United States entered World War I alongside

4464-670: The cotton gin made the institution increasingly profitable for Southern elites . This sectional conflict regarding slavery culminated in the American Civil War (1861–1865). Eleven slave states seceded and formed the Confederate States of America , while the other states remained in the Union . War broke out in April 1861 after the Confederates bombarded Fort Sumter . After

4588-514: The end of the Cold War in 1991, the U.S. emerged as the world's sole superpower , wielding significant geopolitical influence globally . The U.S. national government is a presidential constitutional federal republic and liberal democracy with three separate branches : legislative , executive , and judicial . It has a bicameral national legislature composed of the House of Representatives ,

4712-524: The fall of communism and the collapse of the Soviet Union , which marked the end of the Cold War and left the United States as the world's sole superpower . The 1990s saw the longest recorded economic expansion in American history , a dramatic decline in U.S. crime rates , and advances in technology . Throughout this decade, technological innovations such as the World Wide Web , the evolution of

4836-400: The global economy in 2023. It possesses by far the largest amount of wealth of any country and has the highest disposable household income per capita among OECD countries. The U.S. ranks among the world's highest in economic competitiveness , productivity , innovation , human rights , and higher education . Its hard power and cultural influence have a global reach. The U.S. is

4960-518: The planned invasion of the Japanese home islands , Allied forces invaded Okinawa on 1 April 1945. In March, when briefing Emperor Hirohito on Japan's response to the expected invasion of Okinawa, Japanese military leaders explained that the Imperial Japanese Army was planning extensive air attacks, including the use of kamikaze tactics. The emperor then reportedly asked, "But what about

5084-466: The Ōsumi Peninsula into the open ocean heading south from Kyūshū toward Okinawa. They shifted into a defensive formation , with Yahagi leading Yamato and the eight destroyers deployed in a ring around the two larger ships, with each ship 1,500 m (1,600 yd) from each other and proceeding at 20  kn (23 mph; 37 km/h). The destroyer Asashimo developed engine trouble and turned back. U.S. reconnaissance aircraft began to shadow

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5208-764: The 1775 Battles of Lexington and Concord , igniting the American Revolutionary War . At the Second Continental Congress , the colonies appointed George Washington commander-in-chief of the Continental Army , and created a committee that named Thomas Jefferson to draft the Declaration of Independence . Two days after passing the Lee Resolution to create an independent nation the Declaration

5332-515: The 2010s, political polarization in the country increased between liberal and conservative factions. This polarization was capitalized upon in the January 2021 Capitol attack , when a mob of insurrectionists entered the U.S. Capitol and sought to prevent the peaceful transfer of power in an attempted self-coup d'état . The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and

5456-580: The American West have an alpine climate . The climate is arid in the Southwest, Mediterranean in coastal California , and oceanic in coastal Oregon , Washington , and southern Alaska . Most of Alaska is subarctic or polar . Hawaii , the southern tip of Florida and U.S. territories in the Caribbean and Pacific are tropical . States bordering the Gulf of Mexico are prone to hurricanes, and most of

5580-462: The Battle of Okinawa was reportedly a factor in the American decision to employ atomic weapons against Japan. Yamato remains fairly prominent in modern Japanese culture , where she is often portrayed as a symbol of Japanese nationalism . The academic Robert Farley has written that popular depictions of the battleship portray her destruction as a "heroic, but also pointless and futile, sacrifice". One of

5704-470: The Declaration of Independence on July 4, 1776. The term "United States" and the initialism "U.S.", used as nouns or as adjectives in English, are common short names for the country. The initialism "USA", a noun, is also common. "United States" and "U.S." are the established terms throughout the U.S. federal government , with prescribed rules. In English, the term "America" rarely refers to topics unrelated to

5828-557: The District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km ). The coastal plain of the Atlantic seaboard gives way to inland forests and rolling hills in the Piedmont plateau region. The Appalachian Mountains and the Adirondack massif separate the East Coast from the Great Lakes and the grasslands of the Midwest . The Mississippi River System ,

5952-562: The Elder concluded that major military resources needed to be devoted to North America to win the war against France. For the first time, the continent became one of the main theaters of what could be termed a " world war ". The British colonies' position as an integral part of the British Empire became more apparent during the war, with British military and civilian officials becoming a more significant presence in American life. The war increased

6076-616: The January 1863 Emancipation Proclamation , many freed slaves joined the Union army . The war began to turn in the Union's favor following the 1863 Siege of Vicksburg and Battle of Gettysburg , and the Confederacy surrendered in 1865 after the Union's victory in the Battle of Appomattox Court House . The Reconstruction era followed the war. After the assassination of President Abraham Lincoln , Reconstruction Amendments were passed to protect

6200-416: The Japanese at 00:30 on 6 April, before Yamato and her escorts sailed. At 16:00 on 6 April, Yamato (with Admiral Itō on board), the light cruiser Yahagi , and eight destroyers ( Asashimo , Hamakaze , Isokaze , Suzutsuki , Hatsushimo , Yukikaze , Fuyutsuki , and Kasumi ) departed Tokuyama to begin the mission. Two American submarines , Threadfin and Hackleback , sighted

6324-422: The Japanese force as it proceeded south through the Bungo Channel . Although they were unable to attack because of the ships' speed, they did spend several hours shadowing the Japanese sortie and sending updates on its course to the U.S. fleet. The submarines' messages, which were reportedly sent uncoded, were also picked up by radio operators on the Japanese ships. At dawn on 7 April, the Japanese force passed

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6448-499: The Japanese survivors reported that U.S. fighter aircraft strafed Japanese survivors floating in the water. Japanese survivors also reported that U.S. aircraft temporarily halted their attacks on the destroyers during the time that the destroyers were busy picking up survivors from the water. During the battle, as promised, the Japanese Army conducted an air attack on the U.S. naval fleet at Okinawa, but they failed to sink any ships. Around 115 aircraft—many of them kamikazes —attacked

6572-508: The Navy," he shouted: "this war is of our nation and why should the honor of our 'surface fleet' be more respected? Who cares about their glory? Damn fools!". Vice Admiral Ryūnosuke Kusaka flew from Tokyo to Tokuyama on 5 April in a final attempt to convince Itō and the assembled commanders of the Combined Fleet to accept the plan. Upon hearing of the proposed operation—which had been kept secret from most of them—the Combined Fleet commanders and captains unanimously joined Itō in rejecting it for

6696-467: The Navy? What are they doing to assist in defending Okinawa? Have we no more ships?" Feeling pressured by the emperor to mount some kind of attack, Japanese Navy commanders conceived a kamikaze -type mission for their remaining operational large ships, which included the battleship Yamato . The resulting plan, drafted under the direction of the Commander-in-Chief of the Combined Fleet, Admiral Soemu Toyoda , called for Yamato and her escorts to attack

6820-476: The Rocky Mountains, the Yellowstone Caldera , is the continent's largest volcanic feature. In 2021, the United States had 8% of global permanent meadows and pastures and 10% of cropland. With its large size and geographic variety, the United States includes most climate types. East of the 100th meridian , the climate ranges from humid continental in the north to humid subtropical in the south. The western Great Plains are semi-arid . Many mountainous areas of

6944-411: The U.S. fleet supporting troops landing on the western coast of Okinawa. Yamato and her escorts were to fight their way to Okinawa and then beach themselves between Higashi and Yomitan and fight as shore batteries until they were destroyed. Once the ships were destroyed, their surviving crew members were supposed to abandon ship and fight on land. Very little, if any, air cover could be provided for

7068-451: The U.S. has become a key ally of Ukraine ; it has also provided the country with significant military equipment and other support in response to Russia's 2022 invasion . The president is the commander-in-chief of the United States Armed Forces and appoints its leaders, the secretary of defense and the Joint Chiefs of Staff . The Department of Defense , which is headquartered at the Pentagon near Washington, D.C., administers five of

7192-432: The U.S. ships throughout 7 April. Kamikaze aircraft hit the aircraft carrier Hancock , battleship Maryland , and destroyer Bennett , causing moderate damage to Hancock and Maryland and severe damage to Bennett . About 100 Japanese aircraft were lost in the attack. Ten-Go was the last major Japanese naval operation of the war, and the remaining Japanese warships had little involvement in combat operations for

7316-661: The U.S. territories." Despite disparate systems of confinement, four main institutions dominate: federal prisons , state prisons , local jails, and juvenile correctional facilities . Federal prisons are run by the Federal Bureau of Prisons and hold people who have been convicted of federal crimes, including pretrial detainees. State prisons, run by the official department of correction of each state, hold sentenced people serving prison time (usually longer than one year) for felony offenses. Local jails are county or municipal facilities that incarcerate defendants prior to trial; they also hold those serving short sentences (typically under

7440-416: The United States and the peaceful transfer of power , respectively. The Louisiana Purchase of 1803 from France nearly doubled the territory of the United States. Lingering issues with Britain remained , leading to the War of 1812 , which was fought to a draw. Spain ceded Florida and its Gulf Coast territory in 1819. In the late 18th century, American settlers began to expand westward , many with

7564-541: The United States entered the Cold War, where geopolitical tensions between the U.S. and the Soviet Union led the two countries to dominate world affairs . The U.S. utilized the policy of containment to limit the USSR's sphere of influence, and prevailed in the Space Race , which culminated with the first crewed Moon landing in 1969. Domestically, the U.S. experienced economic growth , urbanization , and population growth following World War II . The civil rights movement emerged, with Martin Luther King Jr. becoming

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7688-495: The United States has operated as a de facto two-party system , though the parties in that system have been different at different times. The two main national parties are presently the Democratic and the Republican . The former is perceived as relatively liberal in its political platform while the latter is perceived as relatively conservative . In the American federal system , sovereign powers are shared between two levels of elected government: national and state. People in

7812-402: The United States in 2001 by the pan-Islamist militant organization al-Qaeda led to the war on terror , and subsequent military interventions in Afghanistan and Iraq . The cultural impact of the attacks was profound and long-lasting. The U.S. housing bubble culminated in 2007 with the Great Recession , the largest economic contraction since the Great Depression. Coming to a head in

7936-415: The United States of America to Spain" to seek assistance in the Revolutionary War effort. The first known public usage is an anonymous essay published in the Williamsburg newspaper, The Virginia Gazette , on April 6, 1776. By June 1776, the "United States of America" appeared in the Articles of Confederation and the Declaration of Independence . The Second Continental Congress adopted

8060-434: The United States, despite the usage of "the Americas " as the totality of North and South America. "The States" is an established colloquial shortening of the name, used particularly from abroad; "stateside" is the corresponding adjective or adverb. The first inhabitants of North America migrated from Siberia across the Bering land bridge about 12,000 years ago; the Clovis culture , which appeared around 11,000 BC,

8184-478: The United States, except Iran , North Korea , and Bhutan . Though Taiwan does not have formal diplomatic relations with the U.S., it maintains close unofficial relations. The United States regularly supplies Taiwan with military equipment to deter potential Chinese aggression. Its geopolitical attention also turned to the Indo-Pacific when the United States joined the Quadrilateral Security Dialogue with Australia, India, and Japan. The United States has

8308-509: The United States. The American prison system is largely heterogenous, with thousands of relatively independent systems operating across federal, state, local, and tribal levels. In 2023, "these systems [held] almost 2 million people in 1,566 state prisons, 98 federal prisons, 3,116 local jails, 1,323 juvenile correctional facilities, 181 immigration detention facilities, and 80 Indian country jails, as well as in military prisons , civil commitment centers, state psychiatric hospitals, and prisons in

8432-426: The anticipated losses would have substantially increased for maritime combatants at large, likewise with surrounding infantry support. It is generally accepted amongst historians that the prior removal of Yamato from the scene was a preliminary objective of the Allies before any further assaults. By early 1945, following the Solomon Islands campaign , the Battle of the Philippine Sea and the Battle of Leyte Gulf ,

8556-402: The bombs and torpedoes aimed at her to miss, Yamato was hit by two armor-piercing bombs and one torpedo. Her speed was not affected, but one of the bombs started a fire aft of the superstructure that was not extinguished. Also, during the first attack wave, destroyers Hamakaze and Suzutsuki were heavily damaged and taken out of the battle. Hamakaze sank later. Between 13:20 and 14:15,

8680-439: The command of Rear Admiral Morton Deyo (which were engaged in shore bombardment ), to intercept and destroy the Japanese sortie. Deyo moved to execute his orders, but Vice Admiral Marc A. Mitscher , who commanded Task Force 58 , preempted Spruance and Deyo by launching a massive air strike from his carriers, without informing Spruance until after the launches were completed. As a senior naval aviation officer, "Mitscher had spent

8804-405: The contiguous United States are in the State of California, about 84 miles (135 km) apart. At an elevation of 20,310 feet (6,190.5 m), Alaska's Denali is the highest peak in the country and continent. Active volcanoes are common throughout Alaska's Alexander and Aleutian Islands , and Hawaii consists of volcanic islands. The supervolcano underlying Yellowstone National Park in

8928-549: The country's GDP. The U.S. has 42% of the world's nuclear weapons —the second-largest share after Russia. The United States has the third-largest combined armed forces in the world, behind the Chinese People's Liberation Army and Indian Armed Forces . The military operates about 800 bases and facilities abroad, and maintains deployments greater than 100 active duty personnel in 25 foreign countries. State defense forces (SDFs) are military units that operate under

9052-464: The country's territory would expand with the admission of new states , rather than the expansion of existing states. The U.S. Constitution was drafted at the 1787 Constitutional Convention to overcome the limitations of the Articles. It went into effect in 1789, creating a federal republic governed by three separate branches that together ensured a system of checks and balances . George Washington

9176-457: The destroyer Asashimo was bombed and sunk with no survivors. The destroyer Kasumi was also crippled and had to be scuttled by other, relatively undamaged destroyers. Suzutsuki was able to make it to Sasebo , Japan, despite her bow being blown off, by steaming in reverse the entire way. The remaining three less-damaged destroyers ( Fuyutsuki , Yukikaze , and Hatsushimo ) were able to rescue 280 survivors from Yamato (sources differ on

9300-647: The development of self-governance, and the First Great Awakening , a series of Christian revivals , fueled colonial interest in religious liberty . For a century, the American colonists had been providing their own troops and materiel in conflicts with indigenous peoples allied with Britain's colonial rivals , especially France, and the Americans had begun to develop a sense of self-defense and self-reliance separate from Britain. The French and Indian War (1754–1763) took on new significance for all North American colonists after Parliament under William Pitt

9424-414: The dispossession of native inhabitants . As more states were admitted , a North–South division over slavery led to the secession of the Confederate States of America , which fought states remaining in the Union in the 1861–1865 American Civil War . With the victory and preservation of the United States, slavery was abolished nationally . By 1900, the country had established itself as a great power ,

9548-409: The entire engineering room crew and bringing her to a complete stop. Yahagi was hit by at least six more torpedoes and 12 bombs by succeeding waves of air attacks. The destroyer Isokaze attempted to come to Yahagi ' s aid but was attacked and heavily damaged and sank sometime later. Yahagi capsized and sank at 14:05. During the first attack wave, despite evasive maneuvers that caused most of

9672-564: The environment for labor unions to begin to flourish . This period eventually ended with the advent of the Progressive Era , which was characterized by significant reforms. Pro-American elements in Hawaii overthrew the Hawaiian monarchy ; the islands were annexed in 1898. That same year, Puerto Rico , the Philippines , and Guam were ceded to the U.S. by Spain after the latter's defeat in

9796-527: The federal government often applied policies of Indian removal or assimilation . The Trail of Tears (1830–1850) was a U.S. government policy that forcibly removed and displaced most Native Americans living east of the Mississippi River to lands far to the west. These and earlier organized displacements prompted a long series of American Indian Wars west of the Mississippi. The Republic of Texas

9920-539: The first nuclear weapons and used them against the Japanese cities of Hiroshima and Nagasaki in August 1945, ending the war. The United States was one of the " Four Policemen " who met to plan the post-war world , alongside the United Kingdom , Soviet Union , and China . The U.S. emerged relatively unscathed from the war, with even greater economic power and international political influence . After World War II,

10044-636: The first settlement of the Thirteen Colonies in Virginia in 1607. Clashes with the British Crown over taxation and political representation sparked the American Revolution , with the Second Continental Congress formally declaring independence on July 4, 1776. Following its victory in the 1775–1783 Revolutionary War , the country continued to expand westward across North America , resulting in

10168-504: The flag cabin while Aruga tied himself to the binnacle . As the order to abandon the ship was issued after the ship began to capsize, many of her crew were trapped. American aircraft continued to attack Yamato during this period, and she suffered several more torpedo hits. At 14:20, Yamato capsized completely and began to sink ( 30°22′N 128°04′E  /  30.367°N 128.067°E  / 30.367; 128.067 ). At 14:23, she suddenly blew up with an explosion so large that it

10292-463: The integration of Army National Guard units and personnel into the U.S. Army and (since 1947) the U.S. Air Force. There are about 18,000 U.S. police agencies from local to national level in the United States. Law in the United States is mainly enforced by local police departments and sheriff departments in their municipal or county jurisdictions. The state police departments have authority in their respective state , and federal agencies such as

10416-624: The main force of ships. At 10:00, the force turned west to make it look like they were withdrawing , but at 11:30, after being detected by two American PBM Mariner flying boats , the Yamato fired a salvo with her 460 mm (18.1 in) bow guns using special "beehive shells" ( 三式焼霰弾 , san-shiki shōsan dan ) but could not prevent the two planes from shadowing. The forces then turned back towards Okinawa. Upon receiving contact reports early on 7 April, Spruance ordered Task Force 54, which consisted mostly of modernized Standard-type battleships under

10540-477: The military draft (leading to the end of conscription in 1973) and wide opposition to U.S. intervention in Vietnam (with the U.S. totally withdrawing in 1975). A societal shift in the roles of women was significantly responsible for the large increase in female paid labor participation during the 1970s, and by 1985 the majority of American women aged 16 and older were employed. The late 1980s and early 1990s saw

10664-504: The mission, mostly practicing damage control procedures. At midnight, the ships were fueled. Reportedly, in secret defiance of orders to provide the ships with only just enough fuel to reach Okinawa, the Tokuyama personnel actually gave Yamato and the other ships almost all of the remaining fuel in the port, although this probably still was not enough to allow the force to return to Japan from Okinawa. Yamato ' s executive officer organised

10788-612: The most attractive to the population are the most vulnerable. The U.S. is one of 17 megadiverse countries containing large numbers of endemic species : about 17,000 species of vascular plants occur in the contiguous United States and Alaska, and over 1,800 species of flowering plants are found in Hawaii, few of which occur on the mainland. The United States is home to 428 mammal species, 784 birds, 311 reptiles, 295 amphibians , and around 91,000 insect species. There are 63 national parks , and hundreds of other federally managed parks, forests, and wilderness areas , managed by

10912-642: The most violent, the California genocide of thousands of Native inhabitants, lasted into the early 1870s, just as additional western territories and states were created. During the colonial period, slavery had been legal in the American colonies , though the practice began to be significantly questioned during the American Revolution. States in the North enacted abolition laws , though support for slavery strengthened in Southern states , as inventions such as

11036-569: The once-formidable Imperial Japanese Navy 's Combined Fleet was reduced to just a handful of operational warships and a few remaining aircraft and aircrew. Most of the remaining Japanese warships in the Combined Fleet were stationed at ports in Japan, with most of the large ships at the port of Kure in the Hiroshima Prefecture on the main Japanese island of Honshu . As a final step before

11160-522: The plan to be futile and wasteful. Other officers of the Imperial Japanese Navy also had very negative views about the operation, believing that it was a waste of human life and fuel. Captain Atsushi Ōi, an operations officer at Grand Escort Command, was critical as fuel and resources were diverted from other operations. As he was told that the aim of this operation was "the tradition and the glory of

11284-408: The policy of redlining later adopted by the federal Home Owners' Loan Corporation . An explosion of technological advancement accompanied by the exploitation of cheap immigrant labor led to rapid economic expansion during the late 19th and early 20th centuries , allowing the United States to outpace the economies of England, France, and Germany combined. This fostered the amassing of power by

11408-469: The port side—caused Yamato to list enough that capsizing was an imminent danger. At 13:33, in a desperate attempt to keep the ship from capsizing, Yamato ' s damage control team counter-flooded both starboard engine and boiler rooms. This narrowly mitigated the imminent danger of capsizing but also drowned the several hundred crew members crewing those stations, who were given no notice that their compartments were about to fill with water. The loss of

11532-553: The primary colonial grievances was a denial of their rights as Englishmen , particularly the right to representation in the British government that taxed them . To demonstrate their dissatisfaction and resolve, the First Continental Congress met in 1774 and passed the Continental Association , a colonial boycott of British goods that proved effective. The British attempt to then disarm the colonists resulted in

11656-430: The proposed plan. The ships' crews were briefed on the nature of the mission and given the opportunity to stay behind if desired; none did. However, approximately 80 crew members who were new, sick, or infirm were ordered off the ships, including 67 naval cadets of Etajima Naval Academy Class No. 74 who had arrived on the battleship three days earlier. The ships' crews engaged in some last-minute intense drills to prepare for

11780-465: The reasons the event may have such significance in Japanese culture is that the word Yamato was often used as a poetic name for Japan. Thus, the end of the battleship Yamato could serve as a metaphor for the end of the Japanese empire, amidst her allegorical greatest might. United States The United States of America ( USA ), commonly known as the United States ( U.S. ) or America ,

11904-407: The rest of the conflict. Suzutsuki was never repaired. Fuyutsuki was repaired but hit a U.S. air-dropped mine at Moji , Japan, on 20 August 1945, and was not subsequently repaired. Yukikaze survived the war almost undamaged. Hatsushimo hit a U.S. air-dropped mine on 30 July 1945, near Maizuru , Japan, and was the 129th, and last, Japanese destroyer sunk in the war. Maryland was kept out of

12028-565: The rights of African Americans . National infrastructure, including transcontinental telegraph and railroads , spurred growth in the American frontier . From 1865 through 1917 an unprecedented stream of immigrants arrived in the United States, including 24.4 million from Europe. Most came through the port of New York City , and New York City and other large cities on the East Coast became home to large Jewish , Irish , and Italian populations, while many Germans and Central Europeans moved to

12152-596: The rocky Great Basin and Chihuahua , Sonoran , and Mojave deserts. In the northwest corner of Arizona , carved by the Colorado River over millions of years, is the Grand Canyon , a steep-sided canyon and popular tourist destination known for its overwhelming visual size and intricate, colorful landscape. The Sierra Nevada and Cascade mountain ranges run close to the Pacific coast . The lowest and highest points in

12276-519: The same reasons that he had expressed. Kusaka then explained that the Navy's attack would help divert U.S. aircraft away from the Army's planned kamikaze attacks on the U.S. fleet at Okinawa. He also explained that Japan's national leadership, including the emperor, were expecting the Navy to make their best effort to support the defense of Okinawa. Upon hearing this, the Combined Fleet commanders relented and accepted

12400-427: The second and third waves of U.S. aircraft attacked, concentrating on Yamato . During this time, Yamato was hit by at least eight torpedoes and up to 15 bombs. The bombs did extensive damage to the topside of the ship, including knocking out power to the gun directors and forcing the anti-aircraft guns to be individually and manually aimed and fired, greatly reducing their effectiveness. The torpedo hits—almost all on

12524-516: The severely depleted Imperial Japanese Army Air Force could muster no opposition, which allowed U.S. dive-bomber and torpedo aircraft to set up for their attacks unmolested. These aircraft—after a two-hour flight from Okinawa—arrived over the Yamato battle group and circled the ship formation just out of anti-aircraft range; the lack of Japanese fighter resistance provided ample breathing room for American crews to methodically plan and coordinate their attack runs. The first wave of U.S. carrier planes

12648-466: The ship could no longer steer and was sinking, Itō ordered the mission canceled, the crew to abandon the ship and the remaining ships to begin rescuing survivors. Yamato communicated this message to the other surviving ships by signal flag because her radios had been destroyed. Itō, along with Captain Kōsaku Aruga , who commanded Yamato for the battle, refused to abandon ship , with Itō retiring to

12772-497: The ships, which would render them almost helpless to concentrated attacks from U.S. carrier-based aircraft. In preparation for executing the plan, on 29 March the assigned ships left Kure for Tokuyama , off the port of Mitajiri on the southern coast of Honshu. Despite obeying orders to prepare for the mission, the commander of the Ten-Go force, Vice-Admiral Seiichi Itō , still refused to actually order his ships to carry it out, believing

12896-516: The six service branches, which are made up of the U.S. Army , Marine Corps , Navy , Air Force , and Space Force . The Coast Guard is administered by the Department of Homeland Security in peacetime and can be transferred to the Department of the Navy in wartime. The United States spent $ 916 billion on its military in 2023, which is by far the largest amount of any country , making up 37% of global military spending and accounting for 3.4% of

13020-495: The size of Yamato ' s crew, giving it as between 2,750 and 3,300 men), plus 555 survivors from Yahagi (out of a crew of 1,000) and just over 800 survivors from Isokaze , Hamakaze , and Kasumi . Between 3,700 and 4,250 Japanese naval personnel perished in the battle. The ships took the survivors to Sasebo. A total of 10 U.S. aircraft were shot down by anti-aircraft fire from the Japanese ships; some aircrews were rescued by seaplane or submarine. The U.S. lost 12 men. Some of

13144-528: The sole authority of a state government. SDFs are authorized by state and federal law but are under the command of the state's governor . They are distinct from the state's National Guard units in that they cannot become federalized entities. A state's National Guard personnel, however, may be federalized under the National Defense Act Amendments of 1933 , which created the Guard and provides for

13268-676: The starboard engines, plus the weight of the water, caused Yamato to slow to about 10 kn (12 mph; 19 km/h). At that same moment, another 110 aircraft were launched from Task Group 58. Twenty Avengers made a torpedo run from 60 degrees to port. Yamato started a sharp turn to port, but three torpedoes ripped into her port side amidships, jamming her auxiliary rudder in position hard port. With Yamato proceeding more slowly and therefore being more accessible to target, U.S. torpedo aircraft concentrated on hitting her rudder and stern with torpedoes to affect her steering ability, which they succeeded in doing. At 14:02, after being informed that

13392-543: The states are also represented by local elected governments , which are administrative divisions of the states. States are subdivided into counties or county equivalents , and further divided into municipalities . The District of Columbia is a federal district containing the U.S. capital, Washington, D.C. . The federal district is an administrative division of the federal government. Federally recognized tribes govern 326 Indian reservations . The United States has an established structure of foreign relations, and it has

13516-504: The structure and responsibilities of the national federal government and its relationship with the individual states. The U.S. Constitution is the world's oldest national constitution still in effect (from March 4, 1789). Composed of three branches, all headquartered in Washington, D.C., the federal government is the national government of the United States. It is regulated by a strong system of checks and balances . The three-branch system

13640-526: The use of San Shiki and colored gunfire meant that Yamato's gunners relied on visual aiming and range, rather than being radar directed, and as a result "were missing with great consistency" despite the storm of fire that they put up. The Hellcat and Corsair fighters "were supposed to go first, to strafe, to rocket, to drop light ordnance, distracting the enemy gunners while the Helldivers plunged almost straight down with their heavy [armor piercing] bombs". This

13764-467: The war following the kamikaze attacks. Okinawa was declared secure by Allied forces on 21 June 1945, after an intense and costly battle. Japan surrendered on 15 August 1945 after the atomic bombings of Hiroshima and Nagasaki and the USSR launching an invasion of northern China and Korea. The apparent willingness of Japan to sacrifice so many of its people using suicidal tactics such as Operation Ten-Go and in

13888-565: The world's fourth-longest river system , runs predominantly north–south through the heart of the country. The flat and fertile prairie of the Great Plains stretches to the west, interrupted by a highland region in the southeast. The Rocky Mountains , west of the Great Plains, extend north to south across the country, peaking at over 14,000 feet (4,300 m) in Colorado . Farther west are

14012-567: The world's second-largest diplomatic corps as of 2024 . It is a permanent member of the United Nations Security Council , and home to the United Nations headquarters . The United States is a member of the G7 , G20 , and OECD intergovernmental organizations. Almost all countries have embassies and many have consulates (official representatives) in the country. Likewise, nearly all countries host formal diplomatic missions with

14136-509: The world's third-largest land area , largest exclusive economic zone , and third-largest population , exceeding 334 million. Its three largest metropolitan areas are New York , Los Angeles , and Chicago , and its three most populous states are California , Texas , and Florida . Paleo-Indians migrated across the Bering land bridge more than 12,000 years ago, and formed various civilizations and societies . British colonization led to

14260-444: The world's oldest surviving federation, and its presidential system of national government has been adopted, in whole or in part, by many newly independent states worldwide following their decolonization . It is a liberal representative democracy "in which majority rule is tempered by minority rights protected by law ". The Constitution of the United States serves as the country's supreme legal document , also establishing

14384-538: The world's tornadoes occur in the country , mainly in Tornado Alley . Overall, the United States receives more high-impact extreme weather incidents than any other country. Extreme weather became more frequent in the U.S. in the 21st century, with three times the number of reported heat waves as in the 1960s. In the American Southwest , droughts became more persistent and more severe. The regions considered as

14508-599: The world, with almost 2 million people incarcerated . An analysis of the World Health Organization Mortality Database from 2010 showed U.S. homicide rates "were 7 times higher than in other high-income countries, driven by a gun homicide rate that was 25 times higher". Tokuyama, Yamaguchi Tokuyama ( 徳山市 , Tokuyama-shi ) was a city located in Yamaguchi Prefecture , Japan . On April 21, 2003, Tokuyama, along with

14632-520: Was annexed in 1845, and the 1846 Oregon Treaty led to U.S. control of the present-day American Northwest . Victory in the Mexican–American War resulted in the 1848 Mexican Cession of California, Nevada, Utah, and much of present-day Colorado and the American Southwest . The California gold rush of 1848–1849 spurred a huge migration of white settlers to the Pacific coast, leading to even more confrontations with Native populations. One of

14756-754: Was adopted on July 4, 1776. The political values of the American Revolution included liberty , inalienable individual rights ; and the sovereignty of the people ; supporting republicanism and rejecting monarchy , aristocracy , and all hereditary political power; civic virtue ; and vilification of political corruption . The Founding Fathers of the United States , who included Washington, Jefferson, John Adams , Benjamin Franklin , Alexander Hamilton , John Jay , James Madison , Thomas Paine , and many others, were inspired by Greco-Roman , Renaissance , and Enlightenment philosophies and ideas. The Articles of Confederation were ratified in 1781 and established

14880-480: Was an opportunity to end the debate forever". Around 10:00 on 7 April, Task Groups 58.1 and 58.3 began launching 280 aircraft from their carriers. Task Group 58.4 launched a further 106 aircraft. The aircraft consisted of F6F Hellcat and F4U Corsair fighters , SB2C Helldiver dive bombers , and TBF Avenger torpedo bombers . Overall, 15 carriers launched aircraft. The air groups launched from five carriers became lost in bad weather and were not able to attack. As

15004-450: Was because the Avenger torpedo bombers "needed all the distraction and diversion they could get when they made their dangerous low altitude runs straight at the enemy ships." The Avengers mainly attacked from the port side so that if the torpedoes hit that side, it would increase the likelihood of the target ship capsizing. At 12:46, a torpedo hit Yahagi directly in her engine room, killing

15128-565: Was elected the country's first president under the Constitution, and the Bill of Rights was adopted in 1791 to allay skeptics' concerns about the power of the more centralized government. His resignation as commander-in-chief after the Revolutionary War and his later refusal to run for a third term as the country's first president established a precedent for the supremacy of civil authority in

15252-488: Was reportedly heard and seen 200 km (110 nmi; 120 mi) away in Kagoshima and sent up a mushroom-shaped cloud almost 20,000 ft (6,100 m) into the air. Japanese survivor Mitsuru Yoshida said that her large explosion downed several U.S. planes observing her end. The explosion is believed to have occurred when the fires ignited by bomb hits reached the main magazines . Attempting to make it back to port,

15376-471: Was spotted by a Japanese lookout on the bridge at 12:32. Two minutes later, at 12:34, Yamato opened fire with her 460 mm main batteries. The ships stopped zigzagging and increased speed to 24 kn (28 mph; 44 km/h), began taking evasive maneuvers, and opened fire with their anti-aircraft guns. Yamato carried almost 150 anti-aircraft guns, including her massive 460 mm main guns that fired San Shiki anti-aircraft shells . The U.S. pilots deduced that

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