"major military thrust" . "Polish Eastern offensive" . . "liberation of Kyiv from Bolsheviks" . . . "2 understrength Ukrainian divisions." . . . "military thrust into Ukraine in 1920" . "Kiev operation" . . "Kiev 1920" . "invasion of Ukraine" . "battle of Kiev" . "Soviet Union" . "recaptured" . "Pi\u0142sudski's military offensive into Ukraine" . "turbulent events" . . "Polish forces" . "pushed Polish forces out of Ukraine" . "1 cavalry division" . . . "Kiev Offensive of 1920" . . "capture of Kiev" . "Kiev Offensive" . "Polish Kiev Offensive" . "Ukrainian People's Republic" . "Poland invaded Ukraine and captured Kiev" . . "briefly captured" . "Over 50,000 men initially, including 15,000 battle-ready soldiers." . "Kij\u00F3w 7 V-11 VI 1920" . "later also 1st Cavalry Army." . "Polish advance towards Kiev" . . "Kiev Offensive (1920)" . "launched an offensive towards Kyiv" . . "offensive on Kyiv" . . "withdrawal from Kiev" . "advance on Kiev" . "Polish offensive on Kiev" . "Kiev Expedition" . "joint offensive" . "Kiev Offensive (1920)" . "8 infantry divisions" . . . "siege of Kiev" . "Operation Kiev" . "capture of Kyiv" . "a successful offensive" . "64,000 men initially." . "attacked Kyiv" . "entry of Polish Army in Kiev" . . "recapture of Kiev" . "Kiev Operation" . . . "major offensive" . . . "Sovietstrategic victory; start of the majorRed Armycounter-offensive" . . "defence of Kiev" . . "to Kyiv" . "war against the Soviet Union" . . "Pi\u0142sudski's expedition to Kiev" . . "taking Kiev" . "Kiev offensive" . "had taken Kiev" . "successful counteroffensive" . "May Offensive" . "Kiev Offensive (1920)#Soviet%20counterattack" . . "captured Kiev" . . "Polish Expedition to Kiev" . . "1920 Polish invasion of Ukraine" . "Kyiv Offensive" . "2 cavalry divisions" . . "secured earlier in 1920" . "Kiev operation against the Bolsheviks" . "Polish Offensive on Kiev" .