query: Who led the Polish military in the Battle of Warsaw?
passage: 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.
passage: Battle of Cyców
The Polish plan for the Battle of Warsaw was based on two assumptions: that Warsaw would withstand a direct assault by Red Army's forces and that the corps-sized Assault Group under direct command of Gen. Józef Piłsudski gain enough time to concentrate behind Wieprz river and prepare a counter-offensive. For the latter to be possible, the Polish forces near Lublin and Zamość (Polish 3rd Army) had to prevent the Bolshevik South-Western Front from reaching the battlefield.