Battle of Warsaw (1920)
The battle of Warsaw was fought from August 12–25, 1920 as Red Army forces commanded by Mikhail Tukhachevsky approached the Polish capital of Warsaw and the nearby Modlin Fortress. On August 16, Polish forces commanded by Józef Piłsudski counterattacked from the south, disrupting the enemy's offensive, forcing the Russian forces into a disorganized withdrawal eastward and behind the Neman River. Estimated Russian losses were 10,000 killed, 500 missing, 30,000 wounded, and 66,000 taken prisoner, compared with Polish losses of some 4,500 killed, 10,000 missing, and 22,000 wounded.
Battle of Radzymin (1920)
Despite the lack of strategic flair in the Polish defence of Radzymin, it was one of the cornerstones of the overall success in the Battle of Warsaw. Although it was Piłsudski's Assault Group that defeated the Russians, the forces at Radzymin and Sikorski's 5th Army were responsible for stopping them at the gates of Warsaw. Żeligowski noted in his memoirs that "Warsaw was saved thanks to Polish successes at Mokra, Wólka Radzymińska and Radzymin".