The Lithuanian-Muscovite War of 1487–1494 (First border war) was the war of the Grand Duchy of Moscow, in alliance with the Crimean Khanate, against the Grand Duchy of Lithuania and Ruthenia in alliance with the Golden Horde Khan Akhmat, united by personal union (Union of Krewo). Kingdom of Poland under the leadership of Grand Duke Casimir IV Jagiellon. Grand Duchy of Lithuania and Ruthenia was home for Ruthenians (ethnic Ukrainians, Belarusians) and the war was going for capturing Belarusians and Ukrainian lands (Kievan inheritance) under Moscow rule.