Please answer the following question: Information: - Peter the Great, Peter I or Peter Alexeyevich ( ) ruled the Tsardom of Russia and later the Russian Empire from 7 May (O.S. 27 April) 1682 until his death, jointly ruling before 1696 with his elder half-brother, Ivan V. Through a number of successful wars he expanded the Tsardom into a much larger empire that became a major European power. He led a cultural revolution that replaced some of the traditionalist and medieval social and political systems with ones that were modern, scientific, westernized, and based on The Enlightenment. Peter's reforms made a lasting impact on Russia and many institutions of Russian government trace their origins to his reign. - The Black Sea is a body of water between Eastern Europe and Western Asia, bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine. It is supplied by a number of major rivers, such as the Danube, Dnieper, Rioni, Southern Bug, and Dniester. The Black Sea has an area of (not including the Sea of Azov), a maximum depth of , and a volume of . It is constrained by the Pontic Mountains to the south and by the Caucasus Mountains to the east, and features a wide shelf to the northwest. The longest east-west extent is about . - The Imperial Russian Navy was the navy of the Russian Empire, existing from 1696 until the February Revolution of 1917; it grew out of a smaller force that existed prior to Peter the Great's founding the regular Russian Navy during the Second Azov campaign. It was expanded in the second half of the 18th century and by the early part of the 19th century had reached its peak strength, only behind the British and French fleets in terms of size. The navy then went into a period of decline due to Russia's slow technical and economic development in the first half of the 19th century but it underwent a revival in the latter part of the century during the reign of Tsar Nicholas II until most of its Pacific Fleet was destroyed in the disastrous Russo-Japanese War. The First World War was mixed for the navy, with the Germans generally gaining the upper hand in the Baltic but the Black Sea falling under Russian control. The Russian Revolution marked the end of the Imperial Navy with its sailors fighting on both sides and its surviving ships forming the core of the Soviet Navy upon its creation in 1918. - The Russian Revolution was a pair of revolutions in Russia in 1917, which dismantled the Tsarist autocracy and led to the eventual rise of the Soviet Union. The Russian Empire collapsed with the abdication of Emperor Nicholas II, and the old regime was replaced by a provisional government during the first revolution of February 1917 (March in the Gregorian calendar; the older Julian calendar was in use in Russia at the time). In the second revolution that October, the Provisional Government was removed and replaced with a communist state. - The Pallada - class cruisers ( Russian name being '' Diana - type protected cruisers '' , Russian : '' '' ) were a group of three protected cruisers built for the Imperial Russian Navy in the late 1890s . One ship of the class , Aurora , is still crewed by the Russian Navy , and maintained as a museum ship . Russian navy selected Diana as class name , despite it being second ship , as better - sounding one . - The Russo-Japanese War (8 February 1904 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and Korea. The major theatres of operations were the Liaodong Peninsula and Mukden in Southern Manchuria and the seas around Korea, Japan and the Yellow Sea. - The Soviet Navy (literally "Military Maritime Fleet of the USSR") was the naval arm of the Soviet Armed Forces. Often referred to as the Red Fleet, the Soviet Navy was a large part of the Soviet Union's strategic plan in the event of a conflict with the United States, the North Atlantic Treaty Organization (NATO), or another conflict related to the Warsaw Pact. The influence of the Soviet Navy played a large role in the Cold War, as the majority of conflicts centered on naval forces. - Russia, also officially known as the Russian Empire, was a state that existed from 1721 until it was overthrown by the short-lived liberal February Revolution in 1917. One of the largest empires in world history, stretching over three continents, the Russian Empire was surpassed in landmass only by the British and Mongol empires. The rise of the Russian Empire happened in association with the decline of neighboring rival powers: the Swedish Empire, the PolishLithuanian Commonwealth, Persia and the Ottoman Empire. It played a major role in 181214 in defeating Napoleon's ambitions to control Europe, and expanded to the west and south. Given the information above, choose from the list below the object entity that exhibits the relation 'operator' with the subject 'pallada-class cruiser'. Choices: - bulgaria - imperial russian navy - russian empire - southern - soviet navy - soviet union
A:
soviet navy