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The IS tanks ( Russian : ИС ) were a series of heavy tanks developed as a successor to the KV-series by the Soviet Union during World War II . The IS acronym is the anglicized initialism of Joseph Stalin ( Ио́сиф Ста́лин , Iosif Stalin ). The heavy tanks were designed as a response to the capture of a German Tiger I in 1943. They were mainly designed as breakthrough tanks, firing a heavy high-explosive shell that was useful against entrenchments and bunkers. The IS-2 went into service in April 1944 and was used as a spearhead by the Red Army in the final stage of the Battle of Berlin . The IS-3 served on the Chinese-Soviet border , the Hungarian Revolution , the Prague Spring and on both sides of the Six-Day War . The series eventually culminated in the T-10 heavy tank .

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114-587: The KV-85 was a KV-1S with the new turret from the Object 237 (IS-85) still in development, mounting the 85mm D-5T gun. The tank was a result of the USSR's tank design bureau being torn in two, one half focusing on the KV-85 and its variants, and the other working on the later IS series. The IS-85 was soon finished and it combined the hull of the KV-13 , the new turret from the KV-85, and

228-696: A UNESCO World Heritage Site . Saint Petersburg is home to the Hermitage , one of the largest art museums in the world, the Lakhta Center , the tallest skyscraper in Europe , and was one of the host cities of the 2018 FIFA World Cup and the UEFA Euro 2020 . The name day of Peter I falls on 29 June, when the Russian Orthodox Church observes the memory of apostles Peter and Paul . The consecration of

342-525: A historically strategic port , it is governed as a federal city . The city was founded by Tsar Peter the Great on 27 May 1703 on the site of a captured Swedish fortress , and was named after the apostle Saint Peter . In Russia , Saint Petersburg is historically and culturally associated with the birth of the Russian Empire and Russia's entry into modern history as a European great power . It served as

456-552: A Model 1941 and Model 1942, both of which received minor upgrades in their service, and both of which survived the war. Romanian forces captured one KV-1 as of 1 November 1942 and one more in March 1944. Leningrad Saint Petersburg , formerly known as Petrograd and later Leningrad , is the second-largest city in Russia after Moscow . It is situated on the River Neva , at

570-668: A capital of the Tsardom of Russia , and the subsequent Russian Empire, from 1712 to 1918 (being replaced by Moscow for a short period of time between 1728 and 1730). After the October Revolution in 1917, the Bolsheviks moved their government to Moscow. The city was renamed Leningrad after Lenin's death in 1924. It was the site of the siege of Leningrad during the Second World War , the most lethal siege in history. In June 1991, only

684-612: A dog the KV-1 really was". By 1942, when the Germans were fielding large numbers of long-barreled 5 cm Pak 38 and 7.5 cm Pak 40 anti-tank guns, the KV's armour was no longer impenetrable, requiring the installation of additional appliqué armour . The KV-1's side (favorable approach: 30° at 300–500 m distance), top, and turret armor could also be penetrated by the high-velocity Mk 101 30 mm cannon carried by German ground attack aircraft, such as

798-454: A few Panzer IIIs armed with 37 mm KwK 36 L/46.5 guns. The German tank guns had neither the range nor the power of the 76 mm main gun of a KV-1, and the narrower track width of the German tanks caused them to become trapped in the swampy ground. When German forces used captured KV-1s, they were renamed as "Panzerkampfwagen KV-IA 753(r)" The Finnish forces had two KV-1s, nicknamed Klimi ,

912-566: A few months before the Belovezha Accords and the dissolution of the USSR , voters supported restoring the city's original appellation in a city-wide referendum . As Russia's cultural centre, Saint Petersburg received over 15 million tourists in 2018. It is considered an important economic, scientific, and tourism centre of Russia and Europe. In modern times, the city has the nickname of being "the Northern Capital of Russia" and

1026-521: A fortress at the mouth of the Neva River in 1611, which was later called Ingermanland . The small town of Nyen grew up around the fort. Before the 17th century, this area was inhabited by Finnic Izhorians and Votians . The Ingrian Finns moved to the region from the provinces of Karelia and Savonia during the Swedish rule. There was also some Estonian , Karelian , Russian and German population in

1140-605: A lighter KV. The complete Object 237 was accepted into service as the IS-85 and was produced in the autumn and winter of 1943-44; they were sent to the front as of October 1943 and production of the IS-85/IS-1 was stopped by the spring of 1944 once the IS-122/IS-2 entered full-scale production. A new heavy tank design entered production late in 1943 based on the work done on the KV-13 . Because Voroshilov had fallen out of political favour,

1254-607: A long 100 mm D-10T cannon. The IS-4 known as the Object 701 was a Soviet heavy tank that started development in 1943 and began production in 1946. Derived from the IS-2 and part of the IS tank family the IS-4 featured a longer hull and increased armor. With the IS-3 already in production, and when sluggish mobility and decreased need for tanks (particularly heavy tanks) became an issue, many were sent to

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1368-597: A longer hull, seven pairs of road wheels instead of six, a larger turret mounting a new gun with fume extractor , an improved diesel engine, and increased armour. General performance was similar, although the T-10 could carry more ammunition. T-10s (like the earlier tanks they replaced) were deployed in independent tank regiments belonging to armies, and independent tank battalions belonging to divisions. These independent tank units could be attached to mechanized units, to support infantry operations and perform breakthroughs. The T-10M

1482-452: A new 122 mm D-13T gun, and more slope on the sides and rear. The design proved to be problematic in terms of crew comfort since the interior was too cramped and the design was cancelled. The IS-7 heavy tank design began in Leningrad in 1945 by Nikolai Fedorovich Shashmurin and was developed in 1948. Weighing 68 tonnes , thickly armoured and armed with a 130 mm S-70 long-barrelled gun, it

1596-492: A new general plan was outlined, whereby the city should expand to the south. Constructivism was rejected in favour of a more pompous Stalinist architecture . Moving the city centre further from the border with Finland, Stalin adopted a plan to build a new city hall with a huge adjacent square at the southern end of Moskovsky Prospekt , designated as the new main street of Leningrad. After the Winter (Soviet-Finnish) war in 1939–1940,

1710-577: A new plan in 1737. The city was divided into five boroughs, and the city centre was moved to the Admiralty borough, on the east bank between the Neva and Fontanka . It developed along three radial streets, which meet at the Admiralty building and are now known as Nevsky Prospect (which is considered the main street of the city), Gorokhovaya Street and Voznesensky Avenue . Baroque architecture became dominant in

1824-509: A rectangular grid of canals. The project was not completed but is evident in the layout of the streets. In 1716, Peter the Great appointed Frenchman Jean-Baptiste Alexandre Le Blond as the chief architect of Saint Petersburg. The style of Petrine Baroque , developed by Trezzini and other architects and exemplified by such buildings as the Menshikov Palace , Kunstkamera , Peter and Paul Cathedral , Twelve Collegia , became prominent in

1938-506: A separate shell and powder charge, resulting in a lower rate of fire and reduced ammunition capacity. While the 122 mm armour-piercing shell had a lower muzzle velocity than similar late German 7.5 cm and 8.8 cm guns, proving-ground tests established that the 122 mm could penetrate the frontal armour of the German Panther tank at 2500 metres and the HE shell would easily blow off

2052-744: A series of Soviet heavy tanks named after the Soviet defence commissar and politician Kliment Voroshilov who operated with the Red Army during World War II . The KV tanks were known for their heavy armour protection during the early stages of the war, especially during the first year of the German invasion of the Soviet Union . In certain situations, even a single KV-1 or KV-2 supported by infantry could halt German formations. The German Wehrmacht at that time rarely deployed its tanks against KVs, as their own armament

2166-549: A slow medium tank than a heavy tank), more modern tanks were already in sight. Up-arming the regular turret of the KV-1S with an 85 mm S-31 resulted in the KV-1S-85. This was rejected as it came with the unacceptable loss of a dedicated commander, reducing the turret crew to two (unlike the 3-man turret fitted to the T-34/85). However, the thinning-out of the armor called into question why

2280-492: Is combined with the city's Russian heritage. Another nickname of Saint Petersburg is "The City of the White Nights" because of a natural phenomenon which arises due to the closeness to the polar region and ensures that in summer the night skies of the city do not get completely dark for a month. The city is also often called the "Northern Palmyra ", due to its extravagant architecture. Swedish colonists built Nyenskans ,

2394-1023: Is home to notable federal government bodies such as the Constitutional Court of Russia and the Heraldic Council of the President of the Russian Federation . It is also a seat for the National Library of Russia and a planned location for the Supreme Court of Russia , as well as the home to the headquarters of the Russian Navy , and the Leningrad Military District of the Russian Armed Forces . The Historic Centre of Saint Petersburg and Related Groups of Monuments constitute

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2508-448: Is still named Leningrad . Having passed the role of capital to Petersburg, Moscow never relinquished the title of "capital", being called pervoprestolnaya ('first throned') for 200 years. An equivalent name for Petersburg, the "Northern Capital", has re-entered usage today since several federal institutions were recently moved from Moscow to Saint Petersburg. Solemn descriptive names like "the city of three revolutions" and "the cradle of

2622-467: Is the final iteration of this type. It featured a longer gun barrel than previous models with 5-baffle muzzle brake and 14.5 mm machine gun. This was the last Soviet heavy tank to enter service. When the advanced T-64 MBT became available it replaced the T-10 in front line formations. The IS-2 entered combat in World War II during the first months of 1944. The Soviets produced significant numbers of

2736-639: Is Αγία Πετρούπολη, Agia Petroupoli ). Saint Petersburg has been traditionally called the "Window to Europe" and the "Window to the West" by the Russians. The city is the northernmost metropolis with more than 1 million people in the world, and is also often described as the " Venice of the North" or the "Russian Venice" due to its many water corridors, as the city is built on swamp and water. Furthermore, it has strongly Western European-inspired architecture and culture, which

2850-506: The 8.8 cm Flak gun . Prior to the start of Operation Barbarossa in June 1941, about 500 of the over 22,000 tanks then in Soviet service were of the KV-1 type. As the war progressed, it became evident that there was little sense in producing the expensive KV tanks, as the T-34 medium tank performed better (or at least equally well) in all practical respects. In fact the only advantage the KV had over

2964-685: The Gold Star sign was installed in April 1985. In October 1946 some territories along the northern coast of the Gulf of Finland , which had been annexed into the USSR from Finland in 1940 under the peace treaty following the Winter War , were transferred from Leningrad Oblast to Leningrad and divided into Sestroretsky District and Kurortny District . These included the town of Terijoki (renamed Zelenogorsk in 1948). Leningrad and many of its suburbs were rebuilt over

3078-606: The Great Northern War , Peter the Great captured Nyenskans and soon replaced the fortress. On 27 May [ O.S. 16 May] 1703, closer to the estuary (5 km (3 mi) inland from the gulf ), on Zayachy (Hare) Island , he laid down the Peter and Paul Fortress , which became the first brick and stone building of the new city. The city was built by conscripted peasants from all over Russia; in some years several Swedish prisoners of war were also involved under

3192-516: The Henschel Hs 129 . The KV-1's 76.2 mm gun also came in for criticism. While adequate against all German tanks, it was the same gun as carried by smaller, faster, and cheaper T-34 medium tanks. In 1943, it was determined that this gun could not easily penetrate the frontal armour of the new Tiger, the first German heavy tank, one of which was captured near Leningrad . The KV-1 was also much more difficult to manufacture and thus more expensive than

3306-518: The Leningrad Affair (1949–1952), a notable event in the postwar political struggle in the USSR . It was a product of rivalry between Stalin's potential successors where one side was represented by the leaders of the city Communist Party organization – the second most significant one in the country after Moscow. The entire elite leadership of Leningrad was destroyed, including the former mayor Kuznetsov ,

3420-685: The Narva Triumphal Arch . In 1825, the suppressed Decembrist revolt against Nicholas I took place on the Senate Square in the city, a day after Nicholas assumed the throne. By the 1840s, neoclassical architecture had given way to various romanticist styles, which dominated until the 1890s, represented by such architects as Andrei Stackenschneider ( Mariinsky Palace , Beloselsky-Belozersky Palace , Nicholas Palace , New Michael Palace ) and Konstantin Thon ( Moskovsky railway station ). With

3534-544: The October Revolution , which led to the end of the social-democratic provisional government , the transfer of all political power to the Soviets , and the rise of the Communist Party . After that the city acquired a new descriptive name, "the city of three revolutions", referring to the three major developments in the political history of Russia of the early 20th century. In September and October 1917, German troops invaded

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3648-472: The October revolution " used in the Soviet era are reminders of the pivotal events in national history that occurred here. Petropolis is a translation of a city name to Greek, and is also a kind of descriptive name: Πέτρ- is a Greek root for 'stone', so the "city from stone" emphasizes the material that had been forcibly made obligatory for construction from the first years of the city (a modern Greek translation

3762-589: The Russian Far East with some eventually becoming pillboxes along the Chinese border in the 1960s. Less than 250 were produced. The IS-5, is merely one of the many designations given to what would ultimately become the T-10 tank. There existed two different IS-6s: the Object 253 was an attempt to develop a practical electrical transmission system for heavy tanks. Similar systems had been tested previously in France and

3876-557: The Soviet invasion of Hungary , the Prague Spring and on both sides of the Six-Day War . However, the mobility and firepower of medium-tanks and the evolution of the main battle tank rendered heavy tanks obsolete. There are several surviving IS series tanks, with examples found at the following: KV-85 The Kliment Voroshilov ( KV ; Russian : Климент Ворошилов, КВ ) tanks are

3990-604: The West Estonian archipelago and threatened Petrograd with bombardment and invasion. On 12 March 1918, Lenin transferred the government of Soviet Russia to Moscow, to keep it away from the state border. During the Russian Civil War , in mid-1919 Russian anti-communist forces with the help of Estonians attempted to capture the city, but Leon Trotsky mobilized the army and forced them to retreat back to Estonia . On 26 January 1924, five days after Lenin's death, Petrograd

4104-461: The emancipation of the serfs undertaken by Alexander II in 1861 and an Industrial Revolution , the influx of former peasants into the capital increased greatly. Poor boroughs spontaneously developed on the outskirts of the city. Saint Petersburg surpassed Moscow in population and industrial growth; it became one of the largest industrial cities in Europe, with a major naval base (in Kronstadt ),

4218-593: The 122mm A19 gun (later adopted and renamed as the D-25T). The IS-122 was found to be better than the IS-100 in trials, and so the IS-100 was dropped. The IS-122 was renamed to IS-2 and production started with the 1943 model using a KV-13 chassis. First deliveries of IS-2s were in December 1943. The 1944 model was produced with a revised front slope that was better from an armor point of view while still saving weight. Production in bulk of

4332-435: The 1920s and 1930s, the poor outskirts were reconstructed into regularly planned boroughs . Constructivist architecture flourished around that time. Housing became a government-provided amenity ; many "bourgeois" apartments were so large that numerous families were assigned to what were called "communal" apartments ( kommunalkas ). By the 1930s, 68% of the population lived in such housing under very poor conditions. In 1935,

4446-586: The Axis invasion of the Soviet Union in June 1941. The siege lasted 872 days, or almost two and a half years, from 8 September 1941 to 27 January 1944. The Siege of Leningrad proved one of the longest, most destructive, and most lethal sieges of a major city in modern history . It isolated the city from food supplies except those provided through the Road of Life across Lake Ladoga , which could not make it through until

4560-424: The German division's anti-aircraft battalion was moved about 730 m (800 yd) behind the tank but was knocked out by the tank gunner before it could score a hit. During the night, German combat engineers attempted to destroy the tank with satchel charges and failed, despite possibly damaging the tracks. Early on the morning of 25 June, German tanks fired on the KV from the woodland while an 88 mm targeted

4674-578: The German words Sankt and Burg . In March 1917, during the February Revolution Nicholas II abdicated for himself and on behalf of his son, ending the Russian monarchy and over three hundred years of Romanov dynastic rule . On 7 November [ O.S. 25 October] 1917, the Bolsheviks , led by Vladimir Lenin , stormed the Winter Palace in an event known thereafter as

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4788-454: The Germans during the war. All tanks in the series were heavily based on the KV-1. A KV-1 or KV-2 tank (accounts vary) advanced far behind the German lines after attacking a column of German trucks. The tank stopped on a road across soft ground and was engaged by four 50 mm anti-tank guns of the anti-tank battalion of the 6th Panzer Division . The tank was hit many times but returned fire, disabling all four guns. A heavy 8.8 cm gun of

4902-612: The IS-2 started in February 1944 and ended nearing the end of World War II. By the end of World War II, 3,854 IS-2 model 1943 and model 1944's combined had been produced. German general Hasso von Manteuffel , who met tanks of that series in combat for the first time in Romania in 1944, considered the Stalin tank "the finest in the world." There are two tanks known as IS-3: Object 244 was an IS-2 rearmed with

5016-417: The KV-85 tremendously, only 148 were built between August and October 1943. Soviet industry was therefore able to produce a heavy tank as well armed as the Tiger I before the end of 1943. Although the KV-85 was an excellent opponent to the Tigers and Panthers, it was a stopgap and thus was built in small numbers. Its weight had climbed up again to about 47 tons, which negated the whole point of trying to make

5130-496: The Neva River, and a seaport on the Baltic. The names of Saints Peter and Paul , bestowed upon the original city's citadel and its cathedral (from 1725 – a burial vault of Russian emperors) coincidentally were the names of the first two assassinated Russian emperors, Peter III (1762, supposedly killed in a conspiracy led by his wife, Catherine the Great ) and Paul I (1801, Nikolay Alexandrovich Zubov and other conspirators who brought to power Alexander I ,

5244-549: The Soviet era, many historic architectural monuments of the previous centuries were destroyed by the new regime for ideological reasons. While that mainly concerned churches and cathedrals, some other buildings were also demolished. On 1 December 1934, Sergey Kirov , the Bolshevik leader of Leningrad, was assassinated under suspicious circumstances, which became the pretext for the Great Purge . In Leningrad, approximately 40,000 were executed during Stalin's purges. During World War II, German forces besieged Leningrad following

5358-504: The Soviet–Finnish border moved northwards. Nevsky Prospekt with Palace Square maintained the functions and the role of a city centre. In December 1931, Leningrad was administratively separated from Leningrad Oblast . At that time it included the Leningrad Suburban District, some parts of which were transferred back to Leningrad Oblast in 1936 and turned into Vsevolozhsky District , Krasnoselsky District , Pargolovsky District and Slutsky District (renamed Pavlovsky District in 1944). During

5472-452: The T-34 had a similar F-34 main gun), was built in large quantities and received frequent upgrades. When production shifted to the " Tankograd " complex in the Ural Mountains , the KV-2 was dropped. While impressive on paper, it had been designed as a slow-moving bunker-buster. It was less useful in the highly mobile, fluid warfare that developed in World War II. The turret was so heavy it was difficult to traverse on uneven terrain. Finally, it

5586-419: The T-34, its advantages no longer outweighed its drawbacks. Because of its initial superior performance, the KV-1 was chosen as one of the few tanks to continue being built following the Soviet reorganization of tank production. Due to the new standardization, it shared a similar engine and gun as the T-34 (the KV used a 600 hp V-2K modification of the T-34's V-2 diesel engine, and had a ZiS-5 main gun while

5700-438: The T-34/76 was its larger and roomier three-man turret. Later in the war, the KV series became a base for the development of the IS (Iosif Stalin) series of tanks and self-propelled guns. After disappointing results with the multi-turreted T-35 heavy tank, Soviet tank designers started drawing up replacements. The T-35 conformed to the 1920s notion of a "breakthrough tank" with very heavy firepower though its armour protection

5814-439: The United States and had been used with limited success in the German Elefant /Ferdinand tank destroyer during World War II. The experimental transmission proved unreliable and was dangerously prone to overheating, and development was discontinued. The alternative Object 252 shared the same hull and turret as the Object 253, but used a different suspension with no return rollers, and a conventional mechanical transmission. The design

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5928-400: The Winter Palace and prohibited spacing between buildings. During the reign of Catherine the Great in the 1760s–1780s, the banks of the Neva were lined with granite embankments. However, it was not until 1850 that the first permanent bridge across the Neva, Annunciation Bridge , was allowed to open. Before that, only pontoon bridges were allowed. Obvodny Canal (dug in 1769–1833) became

6042-508: The acting mayor Pyotr Sergeevich Popkov, and all their deputies; overall 23 leaders were sentenced to the death penalty, 181 to prison or exile (rehabilitated in 1954). About 2,000 ranking officials across the USSR were expelled from the party and the Komsomol and removed from leadership positions. The Leningrad Metro underground rapid transit system , designed before the war, opened in 1955 with its first eight stations decorated with marble and bronze . However, after Stalin's death in 1953,

6156-412: The area. At the end of the 17th century, Peter the Great, who was interested in seafaring and maritime affairs, wanted Russia to gain a seaport to trade with the rest of Europe. He needed a better seaport than the country's main one at the time, Arkhangelsk , which was on the White Sea in the far north and closed to shipping during the winter. On 12 May [ O.S. 1 May] 1703, during

6270-414: The battle, the crew of No. 864 counted a total of 135 hits on their tank, none of which had penetrated the KV-1's armour. Lieutenant Kolobanov was awarded the Order of Lenin , while his Gunner Usov was awarded the Order of the Red Banner . Later, former Captain Zinoviy Kolobanov was again decorated by Soviet authorities, despite having been convicted and downgraded after the Winter War for "fraternizing with

6384-426: The city Menshikov is maybe also the author of the first nickname of Petersburg which he called Петри ( Petri ). It took some years until the known Russian spelling of this name finally settled. In 1740s Mikhail Lomonosov uses a derivative of Greek: Πετρόπολις (Петрополис, Petropolis ) in a Russified form Petropol ' (Петрополь). A combo Piterpol (Питерпол) also appears at this time. In any case, eventually

6498-514: The city architecture of the early 18th century. In 1724 the Academy of Sciences , University and Academic Gymnasium were established in Saint Petersburg by Peter the Great. In 1725, Peter died at age fifty-two. His endeavors to modernize Russia had been opposed by the Russian nobility . There were several attempts on his life and a treason case involving his son. In 1728, Peter II of Russia moved his seat back to Moscow. But four years later, in 1732, under Empress Anna of Russia , Saint Petersburg

6612-400: The city authorities arranged for the mayoral elections and a referendum upon the city's name, when the original name Saint Petersburg was restored. The turnout was 65%; 66.13% of the total count of votes went to Anatoly Sobchak , who became the first directly elected mayor of the city . Meanwhile, economic conditions started to deteriorate as the country tried to adapt to major changes. For

6726-496: The city authorities until December 2010, when after the statement of President Dmitry Medvedev , the city decided to find a more appropriate location for this project. In the same year, the new location for the project was relocated to Lakhta , a historical area northwest of the city centre, and the new project would be named Lakhta Center . Construction was approved by Gazprom and the city administration and commenced in 2012. The 462 m (1,516 ft) high Lakhta Center has become

6840-407: The city during the first sixty years, culminating in the Elizabethan Baroque, represented most notably by Italian Bartolomeo Rastrelli with such buildings as the Winter Palace . In the 1760s, Baroque architecture was succeeded by neoclassical architecture . Established in 1762, the Commission of Stone Buildings of Moscow and Saint Petersburg ruled that no structure in the city could be higher than

6954-415: The city was renamed Leningrad in January 1924. The referendum on restoring the historic name was held on 12 June 1991, with 55% of voters supporting " Saint Petersburg " and 43% supporting " Leningrad ". The turnout was 65% . Renaming the city Petrograd was not an option. This change officially took effect on 6 September 1991. Meanwhile, the oblast whose administrative center is also in Saint Petersburg

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7068-460: The designer to install heavy frontal and turret armour while keeping the weight within manageable limits. The KV was ordered right off the drawing board. When the Soviets entered the Winter War , the SMK, KV and a third design, the T-100 , were sent to be tested in combat conditions. The KV outperformed the SMK and T-100 designs. The KV's heavy armour proved highly resistant to Finnish anti-tank weapons, making it more difficult to stop. In 1939,

7182-611: The drive sprocket and tread of the heaviest German tank or self-propelled gun . The IS-122 replaced the IS-85, and began mass production as the IS-2. The 85 mm gun saw service in the lighter SU-85 and T-34-85. The Soviets did not recognize different production models of KV-1 during the war; designations like model 1939 (M1939, Russian: Obr. 1939 ) were introduced later in military publications. These designations, however, are not strict and describe leading changes, while other changes might be adapted earlier or later in specific production batches. Designations like KV-1A were applied by

7296-450: The enemy." Lieutenant Kolobanov served in the post-war Soviet occupation zone in East Germany , where he was convicted again and transferred to the reserves when a subordinate escaped to the British occupation zone. Kolobanov's feat was so great that when telling his story after the war, civilians and military personnel alike did not believe him, sometimes laughing in disbelief while listening to his tale. A monument dedicated to this battle

7410-503: The era, being about twice as heavy as the heaviest German tank at that time (before the Tiger ). As appliqué armour and other improvements were added without increasing engine power, later models were less capable of keeping up to speed with medium tanks and had more trouble with difficult terrain. In addition, its firepower was no better than that of the T-34 . It took field reports from senior commanders "and certified heroes", who could be honest without risk of punishment, to reveal "what

7524-431: The few Tigers. A stopgap upgrade to the KV series was the short-lived KV-85 or Objekt 239. This was a KV-1S with the new turret from the Object 237 (IS-85) still in development, mounting the same 85 mm D-5T gun as the SU-85 and early versions of the T-34-85 (not yet in production at the time). The 85 mm proved capable of penetrating the Tiger I from 1000 m and the demand for it slowed production of

7638-400: The first time since the 1940s, food rationing was introduced, and the city received humanitarian food aid from abroad. This dramatic time was depicted in photographic series of Russian photographer Alexey Titarenko . Economic conditions began to improve only at the beginning of the 21st century. In 1995, a northern section of the Kirovsko-Vyborgskaya Line of the Saint Petersburg Metro

7752-434: The gun while the turret began moving again, the other five or six shots having not fully penetrated. Apparently, the KV-1 crew had remarkably only been stunned by the shots which had entered the turret. Afterwards, they were buried nearby with military honours by the German unit. On August 14, 1941, the vanguard of the German 8th Panzer Division approached Krasnogvardeysk ( Gatchina ) near Leningrad ( St Petersburg ), and

7866-415: The head of the Gulf of Finland on the Baltic Sea . The city had a population of 5,601,911 residents as of 2021, with more than 6.4 million people living in the metropolitan area . Saint Petersburg is the fourth-most populous city in Europe, the most populous city on the Baltic Sea, and the world's northernmost city of more than 1 million residents. As the former capital of Imperial Russia , and

7980-411: The head of the city administration . The title of the city head was changed from "mayor" to "governor". In 2000, Yakovlev won re-election. His second term expired in 2004; the long-awaited restoration of the broken subway connection was expected to finish by that time. But in 2003 Yakovlev suddenly resigned, leaving the governor's office to Valentina Matviyenko . The law on election of the City Governor

8094-420: The lake froze. More than one million civilians were killed, mainly from starvation. There were incidents of cannibalism, with around 2,000 residents arrested for eating other people. Many others escaped or were evacuated, so the city became largely depopulated. On 1 May 1945 Joseph Stalin , in his Supreme Commander Order No. 20, named Leningrad, alongside Stalingrad , Sevastopol , and Odesa , hero cities of

8208-513: The long-barrelled 85 mm cannon (D-5T-85-BM) and developed by the Leningrad Kirov Plant (LKZ) , which was never series-produced for service use. The IS-3 known as Object 703 is a Soviet heavy tank developed in late 1944, and began production in May 1945. Its semi-hemispherical cast turret (resembling an upturned soup bowl), became the hallmark of post-war Soviet tanks. Its pike nose design

8322-540: The main competing designs was the SMK , which in its final form had two turrets, mounting one 76.2 mm and one 45 mm weapon. The designers of the SMK independently drew up a single-turreted variant and this received approval at the highest level. Two of these, named after the People's Commissar for Defence , were ordered alongside a single SMK. The smaller hull and single turret enabled

8436-431: The main stumbling block of the KV-1, and there was some truth to rumors of Soviet drivers having to shift gears with a hand sledge"; and the ergonomics were poor, with limited visibility. Furthermore, at 45 tons, it was simply too heavy. This severely impacted the maneuverability, not so much in terms of maximum speed, as through inability to cross many bridges medium tanks could cross. The KV outweighed most other tanks of

8550-402: The more than 200 Soviet tanks lost at Raseiniai, 29 were KVs. The KV's strengths included armor that was impenetrable by any tank-mounted weapon then in service except at point-blank range, that it had good firepower, and that it had good flotation on soft ground. It also had serious flaws: it was difficult to steer; the transmission (which was a twenty-year-old Holt Caterpillar design) "was

8664-656: The new heavy tank series was named the Iosif Stalin tank , after the Soviet leader Stalin . The KV-13 program's IS-85 prototype was accepted for production as the IS-1 (or IS-85, Object 237) heavy tank. After testing with both the 100 mm D-10 and 122 mm guns, the D-25T 122 mm gun was selected as the main armament of the new tank, primarily because of its ready availability and the effect of its large high-explosive shell when attacking German fortifications. The 122 mm D-25T used

8778-411: The only Soviet force available at the time to attempt to stop the German advance consisted of five well-hidden KV-1 tanks, dug in within a grove at the edge of a swamp. KV-1 tank no. 864 was commanded by the leader of this small force, Lieutenant Zinoviy Kolobanov . German forces attacked Krasnogvardeysk from three directions. Near Noviy Uchkhoz settlement the geography favoured the Soviet defenders as

8892-425: The only road in the region passed the swamp, and the defenders commanded this choke point from their hidden position. Lieutenant Kolobanov had carefully studied the situation and readied his detachment the day before. Each KV-1 tank carried twice the normal amount of ammunition, two-thirds being armour-piercing rounds. Kolobanov ordered his other commanders to hold their fire and await orders. He did not want to reveal

9006-459: The opportunity to destroy the second tank. Only then did the Germans realize they were under attack, but they failed to find the source of the shots. While the German tanks were firing blindly, Kolobanov knocked out the trailing German tank, thus boxing in the entire column. Although the Germans correctly guessed the direction of fire, they could only spot Lieutenant Kolobanov's tank, and now attempted to engage an unseen enemy. German tanks moving off

9120-466: The original name, Sankt-Peterburg , was returned by citywide referendum. Today, in English the city is known as Saint Petersburg . Local residents often refer to the city by its shortened nickname, Piter (Russian: Питер , IPA: [ˈpʲitʲɪr] ). After the October Revolution the name Red Petrograd (Красный Петроград, Krasny Petrograd ) was often used in newspapers and other prints until

9234-484: The perceived ornamental excesses of the Stalinist architecture were abandoned. From the 1960s to the 1980s many new residential boroughs were built on the outskirts; while the functionalist apartment blocks were nearly identical to each other, many families moved there from kommunalkas in the city centre to live in separate apartments. On 12 June 1991 , simultaneously with the first Russian SFSR presidential elections ,

9348-480: The post-war decades, partially according to pre-war plans. The 1948 general plan for Leningrad featured radial urban development in the north as well as in the south. In 1953, Pavlovsky District in Leningrad Oblast was abolished, and parts of its territory, including Pavlovsk, merged with Leningrad. In 1954, the settlements Levashovo , Pargolovo and Pesochny merged with Leningrad. Leningrad gave its name to

9462-594: The preservation of its historical and architectural environment became controversial. After 2005, the demolition of older buildings in the historical centre was permitted. In 2006, Gazprom announced an ambitious project to erect a 403 m (1,322 ft) skyscraper (the Okhta Center ) opposite to Smolny , which could result in the loss of the unique line of Petersburg landscape. Urgent protests by citizens and prominent public figures of Russia against this project were not considered by Governor Valentina Matviyenko and

9576-517: The production of 50 KVs was ordered. During the war, the Soviets found it difficult to deal with the concrete bunkers used by the Finns and a request was made for a tank with a large howitzer. One of the rush projects to meet the request was to put the howitzer in a new turret on one of the KV tanks. Initially known as 'Malen'kaya Bashenka' (little turret) and 'Bol'shaya Bashnya' (big turret), the 76-mm-armed tank

9690-408: The road bogged down in the surrounding soft ground, becoming easy targets. 22 German tanks and 2 towed artillery pieces fell victim to Kolobanov's No. 864 before it ran out of ammunition. Kolobanov ordered in another KV-1, and 21 more German tanks were destroyed before the half-hour battle ended. A total of 43 German tanks were destroyed by just five Soviet KV-1s (two more remained in reserve). After

9804-616: The same 85mm D-5T gun as both these tanks. The IS-85 was later referred to as IS-1. The first IS-1 rolled off the line in October 1943, but production was stopped in January 1944, as the IS-1 was quickly replaced by the IS-2. Because of this, only about 200 IS-1s were produced. In December 1943, two up-gunned variants of the IS-85 were created: the IS-100, armed with the 100mm BS-3 gun, and the IS-122, armed with

9918-594: The small wooden church in their names (its construction began at the same time as the citadel) made them the heavenly patrons of the Peter and Paul Fortress , while Saint Peter at the same time became the eponym of the whole city. When in June 1703 Peter the Great renamed the site after Saint Peter, he did not issue a naming act that established an official spelling; even in his own letters he used diverse spellings, such as Санктьпетерсьбурк ( Sanktpetersburk ), emulating German Sankt Petersburg , and Сантпитербурх ( Santpiterburkh ), emulating Dutch Sint-Pietersburgh , as Peter

10032-546: The solely clutch and brake steering systems used by the Panzer III , IV and T-34 and previous KV tanks. Its reduced weight allowed it to achieve a top speed of 43.3 km/h. Over 1,300 were built before production ended in August 1943. Although the KV-1S was, according to some, the best of the KV tanks, overcoming its predecessors' problems (at a cost of losing the heavy armor that made the earlier tanks so valuable, making it more of

10146-649: The son of their victim). The third emperor's assassination took place in Saint Petersburg in 1881 when Alexander II was murdered by terrorists (see the Church of the Savior on Spilled Blood ). The Revolution of 1905 began in Saint Petersburg and spread rapidly into the provinces. On 1 September 1914, after the outbreak of World War I, the Imperial government renamed the city Petrograd , meaning "Peter's City", to remove

10260-631: The southern limit of the city. The most prominent neoclassical and Empire-style architects in Saint Petersburg included: In 1810, Alexander I established the first engineering higher education , the Saint Petersburg Main military engineering School in Saint Petersburg. Many monuments commemorate the Russian victory over Napoleonic France in the Patriotic War of 1812 , including the Alexander Column by Montferrand, erected in 1834, and

10374-525: The supervision of Alexander Menshikov . Tens of thousands of serfs died while building the city. Later, the city became the centre of the Saint Petersburg Governorate . Peter moved the capital from Moscow to Saint Petersburg in 1712, nine years before the Treaty of Nystad of 1721 ended the war. He referred to Saint Petersburg as the capital (or seat of government) as early as 1704. While the city

10488-421: The tank from its rear. Of several shots fired, only two penetrated the tank. German infantry then advanced, with the KV opening machine-gun fire against them. The tank's resistance was finally ended by grenades thrown into the tank's hatches. According to some accounts, the crew was buried by the German soldiers with full military honours; in other accounts, the crew escaped during the night. General Erhard Raus

10602-587: The tank was being produced at all, when the T-34 could seemingly do everything the KV could do and much more cheaply. The Soviet heavy tank program was close to cancellation in mid-1943. The appearance of the German Panther tank in the summer of 1943 persuaded the Red Army to make a serious upgrade of its tank force for the first time since 1941. Soviet tanks needed bigger guns to take on the growing numbers of Panthers and

10716-438: The total force, so only one exposed tank at a time would engage the enemy. On August 14, the German 8th Panzer Division's vanguard ventured directly into the well-prepared Soviet ambush, with Kolobanov's tank knocking out the lead German tank with its first shot. The Germans falsely assumed that their lead tank had hit an anti-tank mine and failed to realize that they had been ambushed. The German column stopped, giving Kolobanov

10830-515: The type (close to 4,000) and deployed them against the most advanced German designs of the time, notably the Tiger I , Tiger II , and Panther , as well as against Elefant tank destroyers. The IS-2 was best used for bunker assault using its high-explosive ammunition, as its reload rate, just 2 rounds per minute, made it ineffective as a tank destroyer. The IS-3 saw service on the Chinese-Soviet border ,

10944-449: The usage of prefix " Sankt- " ceased except for the formal official documents, where a three-letter abbreviation "СПб" ( SPb ) was very widely used as well. In the 1830s Alexander Pushkin translated the "foreign" city name of "Saint Petersburg" to the more Russian Petrograd (Russian: Петроград , IPA: [pʲɪtrɐˈgrat] ) in one of his poems. However, it was only on 31 August [ O.S. 18 August] 1914, after

11058-554: The war with Germany had begun, that Tsar Nicholas II renamed the city Petrograd in order to expunge the German words Sankt and Burg . Since the prefix "Saint" was omitted, this act also changed the eponym and the "patron" of the city from Saint Peter to Peter the Great, its founder. On 26 January 1924, shortly after the death of Vladimir Lenin , it was renamed to Leningrad (Russian: Ленинград , IPA: [lʲɪnʲɪnˈgrat] ), meaning 'Lenin City'. On 6 September 1991,

11172-686: The war. A law acknowledging the honorary title of "Hero City" passed on 8 May 1965 (the 20th anniversary of the victory in the Great Patriotic War), during the Brezhnev era . The Presidium of the Supreme Soviet of the USSR awarded Leningrad as a Hero City the Order of Lenin and the Gold Star medal "for the heroic resistance of the city and tenacity of the survivors of the Siege". The Hero-City Obelisk bearing

11286-574: Was again designated as the capital of the Russian Empire . It remained the seat of the Romanov dynasty and the Imperial Court of the Russian tsars , as well as the seat of the Russian government, for another 186 years until the communist revolution of 1917 . In 1736–1737 the city suffered from catastrophic fires. To rebuild the damaged boroughs, a committee under Burkhard Christoph von Münnich commissioned

11400-558: Was also mirrored by other tanks of the IS tank family such as the IS-7 and T-10 tank. Too late to see combat in World War II, the IS-3 participated in the Berlin Victory Parade of 1945 , and on the Chinese-Soviet border , the Soviet invasion of Hungary , the Prague Spring and the Six-Day War . There are two tanks known as IS-4: Object 245 and Object 701. Object 245 was an IS-2 rearmed with

11514-576: Was being built, Peter lived in a three-room log cabin with his wife Catherine and their children. During its first few years, the city developed around Trinity Square on the right bank of the Neva, near the Peter and Paul Fortress. However, Saint Petersburg soon started to be built out according to a plan. By 1716 the Swiss Italian Domenico Trezzini had elaborated a project whereby the city centre would be on Vasilyevsky Island and shaped by

11628-524: Was changed, breaking the tradition of democratic election by universal suffrage that started in 1991. In 2006, the city legislature re-approved Matviyenko as governor. Residential building had intensified again; real-estate prices inflated greatly, which caused many new problems for the preservation of the historical part of the city. Although the central part of the city has a UNESCO designation (there are about 8,000 architectural monuments in Petersburg),

11742-460: Was commander of the Kampfgruppe of the 6th Panzer Division , the unit delayed by the lone vehicle. He described it as a KV-1 , which was damaged by several 8.8 cm anti-tank gun shots fired from behind the vehicle while it was distracted by Panzer 35(t) tanks from Panzer Battalion 65, and the KV-1 crew were killed by members of a pioneer unit who pushed grenades through two holes made by

11856-400: Was cut off by underground flooding, creating a major obstacle to the city development for almost ten years. On 13 June 1996, Saint Petersburg, alongside Leningrad Oblast and Tver Oblast , signed a power-sharing agreement with the federal government, granting it autonomy. This agreement was abolished on 4 April 2002. In 1996, Vladimir Yakovlev defeated Anatoly Sobchak in the elections for

11970-555: Was deemed to offer no significant advantages over the IS-2, just the reload time was less, and the IS-6 project was halted. Since the IS-6 proved to have no significant advantages over IS-2 and its rival IS-4, in November 1944, they decided to dramatically upgrade the tank. The project was called "Object 252U" (U stands for "Improvement" in Russian). The tank featured a heavily sloped pike-nose armor,

12084-521: Was expensive to produce. Only about 210 KV-2s were made, all in 1940–1941, making it one of the rarest Soviet tanks. The KV-1 continued to get more armor to compensate for the increasing effectiveness of German weapons. This culminated in the KV-1 model 1942 (German designation KV-1C), which had very heavy armor but lacked a corresponding improvement to the engine. It now weighed about 52 tons. Tankers complained that, although they were well-protected, their mobility

12198-442: Was installed in the village of Noviy Uchkhoz in 1980, at the place where Kolobanov's KV-1 was dug in, due solely to the demands of the villagers. It was impossible to find a KV-1 tank, so an IS-2 heavy tank was installed there instead. The Soviet victory was the result of a well-planned ambush in advantageous ground and of technical superiority. Most of the German tanks in this battle were Panzer IIs , armed with 20 mm guns, and

12312-420: Was lacking and it suffered from poor mobility. The Spanish Civil War demonstrated the need for much heavier armour on tanks, and was the main influence on Soviet tank design just prior to World War II. Several competing designs were offered, and even more were drawn up prior to reaching prototype stage. All had heavy armour, torsion-bar suspension , wide tracks, and were of welded and cast construction. One of

12426-603: Was multilingual and a Hollandophile. The name was later normalized and russified to Санкт-Петербург. A former spelling of the city's name in English was Saint Petersburgh . This spelling survives in the name of a street in the Bayswater district of London, near St Sophia's Cathedral , named after a visit by the Tsar to London in 1814. A 14 to 15-letter-long name, composed of the three roots , proved too cumbersome, and many shortened versions were used. The first General Governor of

12540-451: Was poor and they had no firepower advantage over the T-34 medium tank. In response to criticisms, the lighter KV-1S was developed, with thinner armor and a smaller, lower turret in order to reclaim some speed. The KV-1S had a commander's cupola with all-around vision blocks. It also had a sophisticated planetary transmission that significantly increased the reliability, and allowed use of more efficient regenerative geared steering, unlike

12654-664: Was redesignated as the KV-1 Heavy Tank and the 152 mm howitzer one as KV-2 Heavy Artillery Tank . KV tanks first faced the Germans in the Battle of Raseiniai , just after the start of Operation Barbarossa . On 23 June, over 200 German tanks advancing through Lithuania encountered Soviet armor, including KV-1 and KV-2 tanks. While their frontal armor was sufficient to deflect anti-tank fire, German troops were able to outflank them and destroy them with explosive charges or lure them to within point-blank range of direct-fire artillery. Of

12768-478: Was renamed Leningrad . Later many streets and other toponyms were renamed accordingly, with names in honour of communist figures replacing historic names given centuries before. The city has over 230 places associated with the life and activities of Lenin. Some of them were turned into museums, including the cruiser Aurora – a symbol of the October Revolution and the oldest ship in the Russian Navy . In

12882-456: Was the largest and heaviest member of the IS family. The IS-8 (also known as Objekt 730) was the final development of the KV and IS tank series. It was accepted into service in 1952 as the IS-8, but due to the political climate in the wake of Stalin's death in 1953, it was renamed T-10, as it was the tenth heavy tank in Soviet service. The biggest differences from its direct ancestor, the IS-3, were

12996-415: Was too poor to deal with the " Russischer Koloss " – "Russian Colossus". The KV tanks were practically immune to the 3.7 cm KwK 36 and howitzer -like, short-barreled 7.5 cm KwK 37 guns mounted, respectively, on the early Panzer III and Panzer IV tanks fielded by the invading German forces. Until the Germans developed more effective guns, the KV-1 was invulnerable to almost any German weapon except

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