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.
Russo-Japanese War
Tsarist Russia, as a major imperial power, had ambitions in the East. By the 1890s it had extended its realm across Central Asia to Afghanistan, absorbing local states in the process. The Russian Empire stretched from Poland in the west to the Kamchatka Peninsula in the east. With its construction of the Trans-Siberian Railway to the port of Vladivostok, Russia hoped to further consolidate its influence and presence in the region. In the Tsushima incident of 1861 Russia had directly assaulted Japanese territory.