Russian Empire
Though the Empire was only officially proclaimed by Tsar Peter I following the Treaty of Nystad (1721), some historians would argue that it was truly born either when Ivan III of Russia conquered Veliky Novgorod in 1478, or when Ivan the Terrible conquered the Khanate of Kazan in 1552. According to another point of view, the term "Tsardom", which was used after the coronation of Ivan IV in 1547, was already a contemporary Russian word for empire.
Nicholas II of Russia
Russia was defeated in the 1904–1905 Russo-Japanese War, which saw the annihilation of the reinforcing Russian Baltic Fleet after being sent on its round-the-world cruise at the naval Battle of Tsushima, off the coasts of Korea and Japan, the loss of Russian influence over Manchuria and Korea, and the Japanese annexation to the north of South Sakhalin Island. The Anglo-Russian Entente was designed to counter the German Empire's attempts to gain influence in the Middle East, but it also ended the Great Game of confrontation between Russia and the United Kingdom. When all Russian diplomatic efforts to prevent the First World War (1914–1918) failed, Nicholas approved the Imperial Russian Army mobilization on 30 July 1914, which gave Imperial Germany formal grounds to declare war on Russia on 1 August 1914. An estimated 3.3 million Russians were killed in the First World War. The Imperial Russian Army's severe losses, the High Command's incompetent management of the war efforts, and lack of food and supplies on the home front were all leading causes of the fall of the House of Romanov.