1920 Battle of Warsaw

Polish soldiers stationed in the village of Janki near Milosna in August, 1920

Russia and Poland had been at war since 1919 over Ukraine, but in June 1920, the Russian 1^st Cavalry Army defeated the Poles, forcing them to retreat. By August 16, the Russians were close to the capital at Warsaw.

The Soviets tried to surround the city, but failed to adequately defend their southern flank. Polish Commander Józef Piłsudski took advantage of this and routed the invaders. Russian losses were high, estimated at 10,000, while the Poles lost 4,500.

This would secure a peace treaty with Russia till 1939 when half of Poland was annexed into the Soviet Union and the other half by Nazi Germany.