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105-620: The ship left its convoy under radio silence to go on a mission to Dhahran in Saudi Arabia when it was torpedoed 185 kilometres (115 mi) off the coast of Oman by the German submarine U-859 on 28 August 1944. Two crewmen were killed in the sinking and the survivors were rescued the next day. The SS John Barry was carrying a cargo of 3 million American-minted Saudi one- riyal silver coins as an American payment associated with ARAMCO . The reason for this shipment (one of several during

210-674: A rocket system filled with explosive gunpowder materials and had three firing points. It was an effective weapon against ships . In the 8th century the Vikings appeared, although their usual style was to appear quickly, plunder, and disappear, preferably attacking undefended locations. The Vikings raided places along the coastline of England and France, with the greatest threats being in England. They would raid monasteries for their wealth and lack of formidable defenders. They also utilized rivers and other auxiliary waterways to work their way inland in

315-519: A 50-ton video-equipped grab designed by IFREMER, sailed to the location of the John Barry . By early November, much of the ship had been excavated, revealing vintage U.S. Army trucks, tanks, and military equipment. Soon after, the first sign of silver was seen (though initially the video feed was clouded by the ship's oil sticking to the camera lens). Over the next five days, the grab brought up 1.3 million Saudi riyals weighing 17 tons and showered them onto

420-513: A French fleet of 80 ships under Eustace the Monk and an English fleet of 40 under Hubert de Burgh , is notable as the first recorded battle using sailing ship tactics. The battle of Arnemuiden (23 September 1338), which resulted in a French victory, marked the opening of the Hundred Years War and was the first battle involving artillery. However the battle of Sluys , fought two years later, saw

525-477: A convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used in a non-military sense, for example when driving through remote areas. Naval convoys have been in use for centuries, with examples of merchant ships traveling under naval protection dating to the 12th century. The use of organized naval convoys dates from when ships began to be separated into specialist classes and national navies were established. By

630-422: A convoy, its "footprint" (the area within which it could be spotted) was far smaller than if the individual ships had traveled independently. In other words, a submarine had less chance of finding a single convoy than if it were scattered as single ships. Moreover, once an attack had been made, the submarine would need to regain an attack position on the convoy. If, however, an attack were thwarted by escorts, even if

735-432: A decisive Venetian victory, giving it almost a century to enjoy Mediterranean trade domination before other European countries began expanding into the south and west. In the north of Europe, the near-continuous conflict between England and France was characterised by raids on coastal towns and ports along the coastlines and the securing of sea lanes to protect troop–carrying transports. The Battle of Dover in 1217, between

840-461: A decisive victory for Korea over the Japanese navy. In this battle, 47 Japanese warships were sunk and 12 other ships were captured whilst no Korean warship was lost. The defeats in the sea prevented the Japanese navy from providing their army with appropriate supply. Yi Sun-sin was later replaced with Admiral Won Gyun , whose fleets faced a defeat. The Japanese army, based near Busan , overwhelmed

945-587: A defeat of an Ostrogothic fleet at Sena Gallica in the Adriatic Sea . During the Muslim conquests of the 7th century, Muslim fleets first appeared, raiding Sicily in 652 (see History of Islam in southern Italy and Emirate of Sicily ), and defeating the Byzantine Navy in 655. Constantinople was saved from a prolonged Arab siege in 678 by the invention of Greek fire , an early form of flamethrower that

1050-624: A further Mongol invasion . Although with only scarce information, travellers passing the region, such as Ibn Battuta and Odoric of Pordenone noted that Java had been attacked by the Mongols several times, always ending in failure. After those failed invasions, Majapahit empire quickly grew and became the dominant naval power in the 14–15th century. The usage of cannons in the Mongol invasion of Java , led to deployment of cetbang cannons by Majapahit fleet in 1300s. The main warship of Majapahit navy

1155-467: A great naval expedition that occupied parts of Myanmar , Malaya , and Sumatra . In the Nusantara archipelago, large ocean going ships of more than 50 m in length and 5.2–7.8 meters freeboard are already used at least since the 2nd century AD, contacting India to China. Srivijaya empire since the 7th century AD controlled the sea of the western part of the archipelago. The Kedukan Bukit inscription

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1260-459: A highway, convoys are also useful to conserve fuel by drafting . The film Convoy , inspired by a 1975 song of the same name , explores the camaraderie between truck drivers , where the culture of the CB radio encourages truck drivers to travel in convoys. Truck convoys are sometimes organized for fundraising , charity , or promotional purposes. They can also be used as a form of protest , such as

1365-635: A major role in the complicated wars of the successors of Alexander the Great . The Roman Republic had never been much of a seafaring nation, but it had to learn. In the Punic Wars with Carthage , Romans developed the technique of grappling and boarding enemy ships with soldiers. The Roman Navy grew gradually as Rome became more involved in Mediterranean politics; by the time of the Roman Civil War and

1470-464: A major sea invasion near the shores of the eastern Nile Delta using a naval ambush and archers firing from both ships and shore. Assyrian reliefs from the 8th century BC show Phoenician fighting ships, with two levels of oars, fighting men on a sort of bridge or deck above the oarsmen, and some sort of ram protruding from the bow. No written mention of strategy or tactics seems to have survived. Josephus Flavius (Antiquities IX 283–287) reports

1575-648: A military campaign of Persian emperor Darius I over the Bosporus ). During the Han dynasty (202 BC–220 AD), the Chinese began using the stern -mounted steering rudder , and they also designed a new ship type, the junk . From the late Han dynasty to the Three Kingdoms period (220–280 AD), large naval battles such as the Battle of Red Cliffs marked the advancement of naval warfare in

1680-456: A much smaller target: a convoy was as hard to find as a single ship. Even if the privateer found a convoy and the wind was favourable for an attack, it could still hope to capture only a handful of ships before the rest managed to escape, and a small escort of warships could easily thwart it. As a result of the convoy system's effectiveness, wartime insurance premiums were consistently lower for ships that sailed in convoys. Many naval battles in

1785-587: A naval battle between Tyre and the king of Assyria who was aided by the other cities in Phoenicia. The battle took place off the shores of Tyre. Although the Tyrian fleet was much smaller, the Tyrians defeated their enemies. The Greeks of Homer just used their ships as transport for land armies, but in 664 BC there is a mention of a battle at sea between Corinth and its colony city Corcyra . Ancient descriptions of

1890-565: A number of sea battles between galleys ; at Rhium , Naupactus , Pylos , Syracuse , Cynossema , Cyzicus , Notium . But the end came for Athens in 405 BC at Aegospotami in the Hellespont , where the Athenians had drawn up their fleet on the beach, and were surprised by the Spartan fleet, who landed and burned all the ships. Athens surrendered to Sparta in the following year. Navies next played

1995-606: A platform on their ships called balai and performed boarding actions. Scattershots fired from cetbang are used to counter this type of fighting, fired at personnel. In the 12th century, China's first permanent standing navy was established by the Southern Song dynasty , the headquarters of the Admiralty stationed at Dinghai . This came about after the conquest of northern China by the Jurchen people (see Jin dynasty ) in 1127, while

2100-644: A reliable source of shipwrecks for underwater archaeology . A major example is the exploration of the wrecks of various warships in the Pacific Ocean . The first recorded sea battle was the Battle of the Delta , the Ancient Egyptians defeated the Sea Peoples in a sea battle c.  1175 BC . As recorded on the temple walls of the mortuary temple of pharaoh Ramesses III at Medinet Habu , this repulsed

2205-448: A result, the Japanese merchant fleet was largely destroyed by the end of the war. Japanese submarines, unlike their U.S. and German equivalents, focused on U.S. battle fleets rather than merchant convoys, and while they did manage some early successes, sinking two U.S. carriers, they failed to significantly inhibit the invasion convoys carrying troops and equipment in support of the U.S. island-hopping campaign. Several notable battles in

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2310-508: A single battleship could destroy many ships in a convoy before the others could scatter over the horizon. To protect a convoy against a capital ship required providing it with an escort of another capital ship, at very high opportunity cost (i.e. potentially tying down multiple capital ships to defend different convoys against one opponent ship). Battleships were the main reason that the British Admiralty did not adopt convoy tactics at

2415-582: A small number of vessels in a convoy because of their limited supply of torpedoes and shells. The Admiralty took a long time to respond to this change in the tactical position, and in April 1917 convoys were trialled, before being officially introduced in the Atlantic in September 1917. Other arguments against convoys were raised. The primary issue was the loss of productivity, as merchant shipping in convoy has to travel at

2520-506: A tiny proportion of the ocean in sight, without intelligence or radar, warships and even aircraft would be fortunate in coming across a submarine. The Royal Navy and later the United States Navy each took time to learn this lesson. Conversely, a U-boat's radius of vision was even smaller and had to be supplemented by regular long-range reconnaissance flights. For both major allied navies, it had been difficult to grasp that, however large

2625-580: Is combat in and on the sea , the ocean , or any other battlespace involving a major body of water such as a large lake or wide river . The armed forces branch designated for naval warfare is a navy . Naval operations can be broadly divided into riverine/littoral applications ( brown-water navy ), open-ocean applications ( blue-water navy ), between riverine/littoral and open-ocean applications ( green-water navy ), although these distinctions are more about strategic scope than tactical or operational division. The strategic offensive purpose of naval warfare

2730-415: Is projection of force by water, and its strategic defensive purpose is to challenge the similar projection of force by enemies. Mankind has fought battles on the sea for more than 3,000 years. Even in the interior of large landmasses, transportation before the advent of extensive railways was largely dependent upon rivers , lakes , canals , and other navigable waterways . The latter were crucial in

2835-455: Is the oldest record of Indonesian military history, and noted a 7th-century Srivijayan sacred siddhayatra journey led by Dapunta Hyang Sri Jayanasa . He was said to have brought 20,000 troops, including 312 people in boats and 1,312 foot soldiers. The 10th century Arab text Ajayeb al-Hind (Marvels of India) gives an account of an invasion in Africa by people called Wakwak or Waqwaq , probably

2940-425: Is used during winter in case weather is too bad for vehicles to pass on their own. Convoy driving is initiated when the strong wind quickly fills the road with snow behind snowplows, particularly on mountain passes. Only a limited number of vehicles are allowed for each convoy and convoy leader is obliged to decline vehicles not fit for the drive. Storm convoys are prone to multiple-vehicle collision . Convoy driving

3045-461: Is used through Hardangervidda pass on road 7 during blizzards. Convoy is sometimes used on road E134 at the highest and most exposed sections during bad weather. On European route E6 through Saltfjellet pass convoy driving is often used when wind speed is over 15–20 m/s ( fresh or strong gale ) in winter conditions. During the winter of 1990 there was convoy driving for almost 500 hours at Saltfjellet Naval battles Naval warfare

3150-589: The daimyōs to dispatch troops to Joseon Korea to conquer Ming China. The Japanese army which landed at Pusan on 12 April 1502 occupied Seoul within a month. The Korean king escaped to the northern region of the Korean peninsula and Japan completed occupation of Pyongyang in June. The Korean navy then led by Admiral Yi Sun-sin defeated the Japanese navy in consecutive naval battles, namely Okpo, Sacheon, Tangpo and Tanghangpo. The Battle of Hansando on 14 August 1592 resulted in

3255-614: The Age of Sail were fought around convoys, including: By the end of the Napoleonic Wars , the Royal Navy had in place a sophisticated convoy system to protect merchant ships. Losses of ships travelling out of convoy, however, were so high that no merchant ship was allowed to sail unescorted. In the early 20th century, the dreadnought changed the balance of power in convoy battles. Steaming faster than merchant ships and firing at long ranges,

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3360-856: The Axumite Kingdom in modern-day Ethiopia , the Arab traveller Sa'd ibn Abi-Waqqas sailed from there to Tang China during the reign of Emperor Gaozong . Two decades later, he returned with a copy of the Quran , establishing the first Islamic mosque in China, the Mosque of Remembrance in Guangzhou . A rising rivalry followed between the Arabs and Chinese for control of trade in the Indian Ocean. In his book Cultural Flow Between China and

3465-614: The Battle of Actium (31 BC), hundreds of ships were involved, many of them quinqueremes mounting catapults and fighting towers. Following the Emperor Augustus transforming the Republic into the Roman Empire , Rome gained control of most of the Mediterranean. Without any significant maritime enemies, the Roman navy was reduced mostly to patrolling for pirates and transportation duties. It

3570-645: The Battle of the Atlantic was a long struggle as the Germans developed anti-convoy tactics and the British developed counter-tactics to thwart the Germans. The capability of a heavily armed warship against a convoy was dramatically illustrated by the fate of Convoy HX 84 . On November 5, 1940, the German heavy cruiser Admiral Scheer encountered the convoy. Maiden , Trewellard , and Kenbame Head were quickly destroyed, and Beaverford and Fresno City falling afterwards. Only

3675-475: The Canada convoy protest in 2022. The Highway Code of several European countries (Norway, Italy, Greece, Netherlands, Germany, Austria, Switzerland, possibly more) includes special rights for marked convoys. They have to be treated like a single vehicle. If the first vehicle has passed an intersection, all others may do so without interruption. If other road users overtake the convoy, they are not allowed to split into

3780-563: The Chernobyl disaster in Belarus and Ukraine . The convoys are made possible partly by the relatively small geographic distances between the stable and affluent countries of Western Europe, and the areas of need in Eastern Europe and, in a few cases, North Africa and even Iraq . They are often justified because although less directly cost-effective than mass freight transport, they emphasise

3885-494: The Cold War with its high number of military exercises, the military was the main user of convoy rights. Today, catastrophes like large-scale flooding might bring a high number of flagged convoys to the roads. Large-scale evacuations for the disarming of World War II bombs are another common reason for non-governmental organization (NGO) unit movements under convoy rights. In Norway, "convoy driving" ( Norwegian : kolonnekjøring )

3990-586: The French Revolutionary Wars of the late 18th century, effective naval convoy tactics had been developed to ward off pirates and privateers . Some convoys contained several hundred merchant ships. The most enduring system of convoys were the Spanish treasure fleets , that sailed from the 1520s until 1790. When merchant ships sailed independently, a privateer could cruise a shipping lane and capture ships as they passed. Ships sailing in convoy presented

4095-485: The Iran–Iraq War . In the present day, convoys are used as a tactic by navies to deter pirates off the coast of Somalia from capturing unarmed civilian freighters who would otherwise pose easy targets if they sailed alone. The word "convoy" is also associated with groups of road vehicles being driven, mostly by volunteers, to deliver humanitarian aid , supplies, and—a stated objective in some cases—"solidarity". In

4200-579: The John Barry they formed a partnership called "The John Barry Group". Contractors from Houston , Texas, were initially involved in the search, and their efforts were later augmented by the Toulon -based Institut Français de Recherche pour l'Exploitation de la Mer ( IFREMER ). In October 1994, a modified drilling ship (Drillship was the FlexLD, formerly Sedco 445 and later Peregrin VII and now Deepwater Navigator), carrying

4305-561: The Peloponnesian War (431 BC) between Athens' Delian League and the Spartan Peloponnese . Naval strategy was critical; Athens walled itself off from the rest of Greece, leaving only the port at Piraeus open, and trusting in its navy to keep supplies flowing while the Spartan army besieged it. This strategy worked, although the close quarters likely contributed to the plague that killed many Athenians in 429 BC. There were

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4410-475: The Persian Wars were the first to feature large-scale naval operations, not just sophisticated fleet engagements with dozens of triremes on each side, but combined land-sea operations. It seems unlikely that all this was the product of a single mind or even of a generation; most likely the period of evolution and experimentation was simply not recorded by history. After some initial battles while subjugating

4515-646: The Siege of Fort Zeelandia , the first time China had defeated a western power. The Chinese used cannons and ships to bombard the Dutch into surrendering. In the Sengoku period of Japan, Oda Nobunaga unified the country by military power. However, he was defeated by the Mōri clan 's navy. Nobunaga invented the Tekkosen (large Atakebune equipped with iron plates) and defeated 600 ships of

4620-532: The largest naval battles in history . In the 15th century, the Chinese admiral Zheng He was assigned to assemble a massive fleet for several diplomatic missions abroad , sailing throughout the waters of the South East Pacific and the Indian Ocean. During his missions, on several occasions Zheng's fleet came into conflict with pirates . Zheng's fleet also became involved in a conflict in Sri Lanka , where

4725-409: The 12th century, Srivijaya is primarily land-based polity rather than maritime power, fleets are available but acted as logistical support to facilitate the projection of land power. Later, the naval strategy degenerated to raiding fleet. Their naval strategy was to coerce merchant ships to dock in their ports, which if ignored, they will send ships to destroy the ship and kill the occupants. In 1293,

4830-414: The 1990s these convoys became common traveling from Western Europe to countries of the former Yugoslavia , in particular Bosnia and Kosovo , to deal with the aftermath of the wars there. They also travel to countries where standards of care in institutions such as orphanages are considered low by Western European standards, such as Romania ; and where other disasters have led to problems, such as around

4935-669: The Black Sea, raiding the coasts of Anatolia and Thrace, and crossing into the Aegean Sea, plundering mainland Greece (including Athens and Sparta) and going as far as Crete and Rhodes. In the twilight of the Roman Empire in the late 4th century, examples include that of Emperor Majorian , who, with the help of Constantinople, mustered a large fleet in a failed effort to expel the Germanic invaders from their recently conquered African territories, and

5040-589: The East. In the latter engagement, the allied forces of Sun Quan and Liu Bei destroyed a large fleet commanded by Cao Cao in a fire-based naval attack. In terms of seafaring abroad, arguably one of the first Chinese to sail into the Indian Ocean and to reach Sri Lanka and India by sea was the Buddhist monk Faxian in the early 5th century, although diplomatic ties and land trade to Persia and India were established during

5145-549: The Greeks of the Ionian coast, the Persians determined to invade Greece proper. Themistocles of Athens estimated that the Greeks would be outnumbered by the Persians on land, but that Athens could protect itself by building a fleet (the famous "wooden walls"), using the profits of the silver mines at Laurium to finance them. The first Persian campaign, in 492 BC, was aborted because

5250-475: The Greeks, but withdrew anyway, and after losing at Plataea in the following year, returned to Asia Minor , leaving the Greeks their freedom. Nevertheless, the Athenians and Spartans attacked and burned the laid-up Persian fleet at Mycale , and freed many of the Ionian towns. These battles involved triremes or biremes as the standard fighting platform, and the focus of the battle was to ram the opponent's vessel using

5355-670: The Japanese army returned to Japan by the end of December. In 1609, the Tokugawa shogunate ordered the abandonment of warships to the feudal lord . The Japanese navy stagnated until the Meiji period . In ancient China , the first known naval battles took place during the Warring States period (481–221 BC) when vassal lords battled one another. Chinese naval warfare in this period featured grapple-and-hook, as well as ramming tactics with ships called "stomach strikers" and "colliding swoopers". It

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5460-610: The Jin to the north, until the Mongols finally conquered all of China. After the Song dynasty, the Mongol-led Yuan dynasty of China was a powerful maritime force in the Indian Ocean. The Yuan emperor Kublai Khan attempted to invade Japan twice with large fleets (of both Mongols and Chinese), in 1274 and again in 1281, both attempts being unsuccessful (see Mongol invasions of Japan ). Building upon

5565-409: The King of Ceylon traveled back to Ming China afterwards to make a formal apology to the Yongle Emperor . The Ming imperial navy defeated a Portuguese navy led by Martim Afonso de Sousa in 1522. The Chinese destroyed one vessel by targeting its gunpowder magazine, and captured another Portuguese ship. A Ming army and navy led by Koxinga defeated a western power, the Dutch East India Company , at

5670-474: The Korean kingdom of Silla (see also Unified Silla ) and expelled the Korean kingdom of Baekje which were supported by Japanese naval forces from the Korean peninsula (see Battle of Baekgang ) and helped Silla overcome its rival Korean kingdoms, Baekje and Goguryeo , by 668. In addition, the Tang had maritime trading, tributary, and diplomatic ties as far as modern Sri Lanka , India, Islamic Iran and Arabia , as well as Somalia in East Africa . From

5775-423: The Korean navy in the Battle of Chilcheollyang on 28 August 1597 and began advancing toward China. This attempt was stopped when the reappointed Admiral Yi, won the battle of Myeongnyang . The Wanli Emperor of Ming China sent military forces to the Korean peninsula. Yi Sun-sin and Chen Lin continued to successfully engage the Japanese navy with 500 Chinese warships and the strengthened Korean fleet. In 1598,

5880-568: The Malay people of Srivijaya or Javanese people of Mataram kingdom , in 945–946 CE. They arrived at the coast of Tanganyika and Mozambique with 1000 boats and attempted to take the citadel of Qanbaloh, though eventually failed. The reason of the attack is because that place had goods suitable for their country and for China, such as ivory, tortoise shells, panther skins, and ambergris , and also because they wanted black slaves from Bantu people (called Zeng or Zenj by Arabs, Jenggi by Javanese) who were strong and make good slaves. Before

5985-509: The Mediterranean began to wane, the Italian trading towns of Genoa , Pisa , and Venice stepped in to seize the opportunity, setting up commercial networks and building navies to protect them. At first the navies fought with the Arabs (off Bari in 1004, at Messina in 1005), but then they found themselves contending with Normans moving into Sicily, and finally with each other. The Genoese and Venetians fought four naval wars, in 1253–1284, 1293–1299, 1350–1355, and 1378–1381. The last ended with

6090-502: The Mongol Yuan dynasty launched an invasion to Java . The Yuan sent 500–1000 ships and 20,000–30,000 soldiers, but was ultimately defeated on land by surprise attack , forcing the army to fall back to the beach. In the coastal waters, Javanese junks had already attacked the Mongol ships. After all of the troops had boarded the ships on the coast, the Yuan army battled the Javanese fleet. After repelling it, they sailed back to Quanzhou . Javanese naval commander Aria Adikara intercepted

6195-443: The Mōri navy with six armored warships ( Battle of Kizugawaguchi ). The navy of Nobunaga and his successor Toyotomi Hideyoshi employed clever close-range tactics on land with arquebus rifles, but also relied upon close-range firing of muskets in grapple-and-board style naval engagements. When Nobunaga died in the Honnō-ji incident , Hideyoshi succeeded him and completed the unification of the whole country. In 1592, Hideyoshi ordered

6300-474: The North Atlantic on February 8, 1941. When the Germans detected the slow but well-protected battleship HMS  Ramillies escorting the convoy, they fled the scene rather than risk damage from her 15 in (38 cm) guns. The enormous number of vessels involved and the frequency of engagements meant that statistical techniques could be applied to evaluate tactics: an early use of operational research in war. Prior to overt participation in World War II,

6405-415: The Outside World , Shen Fuwei notes that maritime Chinese merchants in the 9th century were landing regularly at Sufala in East Africa to cut out Arab middle-men traders. The Chola dynasty of medieval India was a dominant seapower in the Indian Ocean , an avid maritime trader and diplomatic entity with Song China. Rajaraja Chola I (reigned 985 to 1014) and his son Rajendra Chola I (reigned 1014–42), sent

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6510-409: The Persians in a channel too narrow for them to bring their greater numbers to bear, and attacked them vigorously, in the end causing the loss of 200 Persian ships vs 40 Greek. Aeschylus wrote a play about the defeat, The Persians , which was performed in a Greek theatre competition a few years after the battle. It is the oldest known surviving play. At the end, Xerxes still had a fleet stronger than

6615-460: The Song imperial court fled south from Kaifeng to Hangzhou . Equipped with the magnetic compass and knowledge of Shen Kuo 's famous treatise (on the concept of true north ), the Chinese became proficient experts of navigation in their day. They raised their naval strength from a mere 11 squadrons of 3,000 marines to 20 squadrons of 52,000 marines in a century's time. Employing paddle wheel crafts and trebuchets throwing gunpowder bombs from

6720-532: The South Pacific involved Allied bombers interdicting Japanese troopship convoys which were often defended by Japanese fighters, notable Guadalcanal (13 November 1942), Rabaul (5 January 1943), and the Battle of the Bismarck Sea (2–4 March 1943). At the Battle off Samar , the effectiveness of the U.S. Navy's escorts was demonstrated when they managed to defend their troop convoy from a much larger and more powerful Japanese battle-fleet. The Japanese force comprised four battleships and numerous heavy cruisers, while

6825-402: The U-boats presented themselves as targets to the escorts with increasing possibility of destruction. In this way, the Ubootwaffe suffered severe losses, for little gain, when pressing pack attacks on well-defended convoys. The largest convoy effort since World War II was Operation Earnest Will , the U.S. Navy's 1987–88 escort of reflagged Kuwaiti tankers in the Persian Gulf during

6930-574: The U.S. force consisted of escort carriers, destroyers, and destroyer escorts. Large numbers of American aircraft (albeit without much anti-ship ordnance other than torpedoes) and aggressive tactics of the destroyers (with their radar-directed gunfire) allowed the U.S. to sink three Japanese heavy cruisers at the cost of one escort carrier and three destroyers. The German anti-convoy tactics included: The Allied responses included: They were also aided by Many naval battles of World War II were fought around convoys, including: The convoy prefix indicates

7035-417: The US was actively engaged in convoys with the British in the North Atlantic Ocean, primarily supporting British activities in Iceland. After Germany declared war on the US, the US Navy decided not to organize convoys on the American eastern seaboard. US Fleet Admiral Ernest King ignored advice on this subject from the British, as he had formed a poor opinion of the Royal Navy early in his career. The result

7140-450: The Vikings, only two of which were not beaten back or captured. The Vikings also fought several sea battles among themselves. This was normally done by binding the ships on each side together, thus essentially fighting a land battle on the sea. However the fact that the losing side could not easily escape meant that battles tended to be hard and bloody. The Battle of Svolder is perhaps the most famous of these battles. As Muslim power in

7245-426: The ages. Pre-recorded history (Homeric Legends, e.g. Troy ), and classical works such as The Odyssey emphasize the sea. The Persian Empire – united and strong – could not prevail against the might of the Athenian fleet combined with that of lesser city states in several attempts to conquer the Greek city states. Phoenicia 's and Egypt 's power, Carthage 's and even Rome 's largely depended upon control of

7350-443: The boat's reinforced prow. The opponent would try to maneuver and avoid contact, or alternately rush all the marines to the side about to be hit, thus tilting the boat. When the ram had withdrawn and the marines dispersed, the hole would then be above the waterline and not a critical injury to the ship. During the next fifty years, the Greeks commanded the Aegean, but not harmoniously. After several minor wars, tensions exploded into

7455-400: The decks of their ships, the Southern Song dynasty became a formidable foe to the Jin dynasty during the 12th–13th centuries during the Jin–Song Wars . There were naval engagements at the Battle of Caishi and Battle of Tangdao . With a powerful navy, China dominated maritime trade throughout South East Asia as well. Until 1279, the Song were able to use their naval power to defend against

7560-579: The destruction of the French fleet in a decisive action which allowed the English effective control of the sea lanes and the strategic initiative for much of the war. The Sui (581–618) and Tang (618–907) dynasties of China were involved in several naval affairs over the triple set of polities ruling medieval Korea ( Three Kingdoms of Korea ), along with engaging naval bombardments on the peninsula from Asuka period Yamato Kingdom (Japan). The Tang dynasty aided

7665-530: The development of the modern world in the United Kingdom, America, the Low Countries and northern Germany , because they enabled the bulk movement of goods and raw material , which supported the nascent Industrial Revolution . Prior to 1750, materials largely moved by river barge or sea vessels. Thus armies, with their exorbitant needs for food, ammunition and fodder, were tied to the river valleys throughout

7770-427: The drill-ship's deck. The purported Indian/Soviet silver was nowhere to be found, although the salvagers were unable to access all the locations they suspected the silver might rest. While some plans have surfaced to relaunch the recovery effort, none have come to fruition. Convoy A convoy is a group of vehicles , typically motor vehicles or ships, traveling together for mutual support and protection. Often,

7875-496: The earlier Han dynasty. However, Chinese naval maritime influence would penetrate into the Indian Ocean until the medieval period. The late Middle Ages saw the development of the cogs , caravels and carracks ships capable of surviving the tough conditions of the open ocean, with enough backup systems and crew expertise to make long voyages routine. In addition, they grew from 100 tons to 300 tons displacement, enough to carry cannon as armament and still have space for cargo. One of

7980-565: The escorting warships to the sometimes hazardous conditions of the North Atlantic, with only rare occurrences of visible achievement (i.e. fending off a submarine assault). The British adopted a convoy system, initially voluntary and later compulsory for almost all merchant ships, the moment that World War II was declared. Each convoy consisted of between 30 and 70 mostly unarmed merchant ships. Canadian, and later American, supplies were vital for Britain to continue its war effort. The course of

8085-624: The eventual invasion of Britain. They wreaked havoc in Northumbria and Mercia and the rest of Anglia before being halted by Wessex. King Alfred the Great of England was able to stay the Viking invasions with a pivotal victory at the Battle of Edington. Alfred defeated Guthrum, establishing the boundaries of Danelaw in an 884 treaty. The effectiveness of Alfred's 'fleet' has been debated; Kenneth Harl has pointed out that as few as eleven ships were sent to combat

8190-525: The fleet was lost in a storm, but the second, in 490 BC, captured islands in the Aegean Sea before landing on the mainland near Marathon . Attacks by the Greek armies repulsed these. The third Persian campaign in 480 BC, under Xerxes I of Persia , followed the pattern of the second in marching the army via the Hellespont while the fleet paralleled them offshore. Near Artemisium , in the narrow channel between

8295-583: The hull of the ship in order to rip into the hull of another ship while ramming, to stab enemies in the water that had fallen overboard and were swimming, or simply to clear any possible dangerous marine animals in the path of the ship (since the ancient Chinese did believe in sea monsters; see Xu Fu for more info). Qin Shi Huang , the first emperor of the Qin dynasty (221–207 BC), owed much of his success in unifying southern China to naval power, although an official navy

8400-419: The mainland and Euboea , the Greek fleet held off multiple assaults by the Persians, the Persians breaking through a first line, but then being flanked by the second line of ships. But the defeat on land at Thermopylae forced a Greek withdrawal, and Athens evacuated its population to nearby Salamis Island . The ensuing Battle of Salamis was one of the decisive engagements of history. Themistocles trapped

8505-456: The mid-14th century, the rebel leader Zhu Yuanzhang (1328–1398) seized power in the south amongst many other rebel groups. His early success was due to capable officials such as Liu Bowen and Jiao Yu , and their gunpowder weapons (see Huolongjing ). Yet the decisive battle that cemented his success and his founding of the Ming dynasty (1368–1644) was the Battle of Lake Poyang , considered one of

8610-473: The planned conquest in China was canceled by the death of Toyotomi Hideyoshi , and the Japanese military retreated from the Korean Peninsula. On their way back to Japan, Yi Sun-sin and Chen Lin attacked the Japanese navy at the Battle of Noryang inflicting heavy damages, but the Chinese top official Deng Zilong and the Korean commander Yi Sun-sin were killed in a Japanese army counterattack. The rest of

8715-417: The prime targets of speed traps . Most truckers had difficult schedules to keep and as a result had to maintain a speed above the posted speed limit to reach their destinations on time. Convoys were started so that multiple trucks could run together at a high speed with the rationale being that if they passed a speed trap the police would only be able to pull over one of the trucks in the convoy. When driving on

8820-502: The queue. Clear and uniform marking has been required in court decisions for these rights to apply. Operating such convoy usually needs special permission, but there are exemptions for emergency and catastrophe intervention. Common practice is, to operate with the same style of marking as NATO convoys: STANAG 2154 marking plus country-specific augmentation listed in Annex B to the STANAG. During

8925-403: The route of the convoy. For example, 'PQ' would be Iceland to Northern Russia and 'QP' the return route. The success of convoys as an anti-submarine tactic during the world wars can be ascribed to several reasons related to U-boat capabilities, the size of the ocean and convoy escorts. In practice, Type VII and Type IX U-boats were limited in their capabilities. Submerged speed and endurance

9030-552: The sacrifices of the armed merchant cruiser HMS  Jervis Bay and the freighter Beaverford to stall the Scheer , in addition to failing light, allowed the rest of the convoy to escape. The deterrence value of a battleship in protecting a convoy was also dramatically illustrated when the German light battleships (referred by some as battlecruisers) Scharnhorst and Gneisenau , mounting 11 in (28 cm) guns, came upon an eastbound British convoy ( HX 106 , with 41 ships) in

9135-408: The sea has largely depended on a fleet's ability to wage sea battles. Throughout most of naval history, naval warfare revolved around two overarching concerns, namely boarding and anti-boarding. It was only in the late 16th century, when gunpowder technology had developed to a considerable extent, that the tactical focus at sea shifted to heavy ordnance. Many sea battles through history also provide

9240-753: The seas. So too did the Venetian Republic dominate Italy's city states, thwart the Ottoman Empire , and dominate commerce on the Silk Road and the Mediterranean in general for centuries. For three centuries, Vikings raided and pillaged far into central Russia and Ukraine , and even to distant Constantinople (both via the Black Sea tributaries, Sicily , and through the Strait of Gibraltar ). Gaining control of

9345-483: The smaller cargo of coins. After the recovery effort of this purported treasure failed (see below), it was discovered that all silver shipments to India were accounted for and a new destination for the silver bullion was theorized, the Soviet Union . The ship had sunk to 8,500 feet below the sea surface, far beyond the reaches of most undersea recovery methods. Forty-five years later, however, Skeikh Ahmed Farid al Aulaqi

9450-557: The speed of the slowest vessel in the convoy and spent a considerable amount of time in ports waiting for the next convoy to depart. Further, large convoys were thought to overload port resources. Actual analysis of shipping losses in World War I disproved all these arguments, at least so far as they applied to transatlantic and other long-distance traffic. Ships sailing in convoys were far less likely to be sunk, even when not provided with an escort. The loss of productivity due to convoy delays

9555-511: The start of the first Battle of the Atlantic in World War I . But the German capital ships had been bottled up in the North Sea, and the main threat to shipping came from U-boats . From a tactical point of view, World War I–era submarines were similar to privateers in the age of sail. These submarines were only a little faster than the merchant ships they were attacking, and capable of sinking only

9660-664: The submarine had escaped damage, it would have to remain submerged for its own safety and might only recover its position after many hours' hard work. U-boats patrolling areas with constant and predictable flows of sea traffic, such as the United States Atlantic coast in early 1942, could dismiss a missed opportunity in the certain knowledge that another would soon present itself. The destruction of submarines required their discovery, an improbable occurrence on aggressive patrols, by chance alone. Convoys, however, presented irresistible targets and could not be ignored. For this reason,

9765-405: The support of large numbers of small groups, and are quite distinct from multinational organisations such as United Nations humanitarian efforts. Truckers' convoys consisting of semi-trailer trucks and/or petrol tankers are more similar to a caravan than a military convoy. Truckers' convoys were created as a byproduct of the U.S.' national 55 mph speed limit and 18-wheelers becoming

9870-522: The technological achievements of the earlier Song dynasty, the Mongols also employed early cannons upon the decks of their ships. While Song China built its naval strength, the Japanese also had considerable naval prowess. The strength of Japanese naval forces could be seen in the Genpei War , in the large-scale Battle of Dan-no-ura on 25 April 1185. The forces of Minamoto no Yoshitsune were 850 ships strong, while Taira no Munemori had 500 ships. In

9975-472: The war) was that Saudi Arabia did not use paper money at the time and this led to a war-time shortage of currency with which to pay workers building new oil refineries and other US facilities at newly founded Dhahran. Because the exact nature of the cargo was a secret, rumors spread that the SS John Barry carried a vast shipment of 26 million US$ (1944 value) worth of silver bullion to India as well as

10080-694: Was devastating to the ships in the besieging fleet. These were the first of many encounters during the Byzantine-Arab Wars . The Caliphate became the dominant naval power in the Mediterranean Sea from the 7th to 13th centuries, during what is known as the Islamic Golden Age . One of the most significant inventions in medieval naval warfare was the torpedo , invented in Syria by the Arab inventor Hasan al-Rammah in 1275. His torpedo ran on water with

10185-618: Was granted salvage rights. Retired U.S. Navy Captain Brian Shoemaker , former General Counsel of the Navy, Hugh O'Neill, attorney H. McGuire "Mac" Riley of Howrey & Simon in Washington, D.C., and Jay Fiondella, owner of "Chez Jay", a celebrity-renowned seafood dive in Santa Monica, California, successfully bid for the salvage rights from the U.S. Government. In order to raise the money to retrieve

10290-482: Was limited and not suited for overhauling many ships. Even a surfaced U-boat could take several hours to gain an attack position. Torpedo capacity was also restricted to around fourteen (Type VII) or 24 (Type IX), thus limiting the number of attacks that could be made, particularly when multiple firings were necessary for a single target. There was a real problem for the U-boats and their adversaries in finding each other; with

10395-608: Was not yet established (see Medieval Asia section below). The people of the Zhou dynasty were known to use temporary pontoon bridges for general means of transportation, but it was during the Qin and Han dynasties that large permanent pontoon bridges were assembled and used in warfare (first written account of a pontoon bridge in the West being the oversight of the Greek Mandrocles of Samos in aiding

10500-491: Was only on the fringes of the Empire, in newly gained provinces or defensive missions against barbarian invasion, that the navy still engaged in actual warfare. While the barbarian invasions of the 4th century and later mostly occurred by land, some notable examples of naval conflicts are known. In the late 3rd century, in the reign of Emperor Gallienus , a large raiding party composed by Goths, Gepids and Heruli, launched itself in

10605-570: Was small compared with the loss of productivity due to ships being sunk. Ports could deal more easily with convoys because they tended to arrive on schedule and so loading and unloading could be planned. In his book On the Psychology of Military Incompetence , Norman Dixon suggested that the hostility towards convoys in the naval establishment were in part caused by a (sub-conscious) perception of convoys as effeminating, due to warships having to care for civilian merchant ships. Convoy duty also exposes

10710-452: Was the jong . The jongs were large transport ships which could carry 100–2000 tons of cargo and 50–1000 people, 28.99–88.56 meter in length. The exact number of jong fielded by Majapahit is unknown, but the largest number of jong deployed in an expedition is about 400 jongs, when Majapahit attacked Pasai, in 1350. In this era, even to the 17th century, the Nusantaran naval soldiers fought on

10815-479: Was too late. In the early part of the conflict, American submarines in the Pacific were ineffective as they suffered from timid tactics, faulty torpedoes, and poor deployment, while there were only small numbers of British and Dutch boats. U.S. Admiral Charles A. Lockwood 's efforts, coupled with strenuous complaints from his captains, rectified these problems and U.S. submarines became much more successful by war's end. As

10920-594: Was what the U-boat crews called their Second Happy Time , which did not end until convoys were introduced. In the Pacific Theater of World War II, Japanese merchant ships rarely traveled in convoys. Japanese destroyers were generally deficient in antisubmarine weaponry compared to their Allied counterparts, and the Japanese navy did not develop an inexpensive convoy escort like the Allies' destroyer escort / frigate until it

11025-486: Was written in the Han dynasty that the people of the Warring States era had employed chuan ge ships (dagger-axe ships, or halberd ships), thought to be a simple description of ships manned by marines carrying dagger-axe halberds as personal weapons. The 3rd-century writer Zhang Yan asserted that the people of the Warring States period named the boats this way because halberd blades were actually fixed and attached to

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