Military history of the Russian Empire

The military history of the Russian Empire encompasses the history of armed conflict in which the Russian Empire participated. This history stretches from its creation in 1721 by Peter the Great, until the Russian Revolution (1917), which led to the establishment of the Soviet Union. Much of the related events involve the Imperial Russian Army, Imperial Russian Navy, and from the early twentieth century, the Imperial Russian Air Service.

Historians have long marked the importance of Peter the Great's reign in Russian history. Peter came of age in a vast but technologically and socially backwards country. Upon taking control of Russia in 1682, the tsar energetically redressed every aspect of Russian government, society, and military to more closely match its western neighbors. He fought expansive wars against his neighbors, squeezing every resource at his disposal to power his war machine, and send large numbers of young men west, to learn the trades and skills that Russia would need in the future. Peter founded a new Russia by shattering the old, and by his death in 1725 Russia had taken Sweden's place as Europe's dominant eastern power.

The epoch of Russian history that Peter created has been variously known as the Imperial Age, because of the new connection between the ruler and land; the St. Petersburg Era, as the capital was moved to the newly built Saint Petersburg during his reign; and the All-Russian Period, which stresses the greater hegemony founded in the previously xenophobic country. The period from the time of his rule to the October Revolution (and dissolution of the Russian Empire) in 1917 is also sometimes called the Peterine era, in tribute to his importance. However, the Russian Empire proper was not founded until Peter took the title of imperator (emperor), at the end of the Great Northern War.

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