History of Russia
The war ended in 1721 when an exhausted Sweden sued for peace with Russia. Peter acquired four provinces situated south and east of the Gulf of Finland, thus securing his coveted access to the sea. There, in 1703, he had already founded the city that was to become Russia's new capital, Saint Petersburg, as a "window opened upon Europe" to replace Moscow, long Russia's cultural center. Russian intervention in the Commonwealth marked, with the Silent Sejm, the beginning of a 200-year domination of that region by the Russian Empire. In celebration of his conquests, Peter assumed the title of emperor, and the Russian Tsardom officially became the Russian Empire in 1721.
History of the Ottoman Empire during World War I
The Ottoman entry into World War I began on 29 October 1914 when it launched the Black Sea Raid against Russian ports. Following the attack, Russia and its allies (Britain and France) declared war on the Ottomans in November 1914. The Ottoman Empire started military action came after three months of formal neutrality, but it had signed a secret alliance with the Central Powers in August 1914.