Chortkiv offensive

Chortkiv offensive
Part of the Polish-Ukrainian War (1918–1919)
Map of the Ukrainian offensive in June 1919
Date 7 June - 18 July 1919 (Chortkiv and Summer offensive), 7–28 June 1919 (Chortkiv offensive) Location Chortkiv, East Galicia, West Ukrainian People’s Republic Result Polish victory (See Aftermath) Territorial changes West Ukrainian People's Republic annexed to Poland
Belligerents
West Ukrainian People’s Republic	Second Polish Republic
Commanders and leaders
Yevhen Petrushevych Oleksander Hrekov	Józef Piłsudski Józef Haller
Strength
19,000–20,000 Ukrainians	19,000–20,000, Poles[contradictory]

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The Chortkiv offensive (Ukrainian: Чортківська офензива, Чортків, Polish: Czortkowska ofensywa, Czortków; 7–28 June 1919) also known as June offensive was one of the most successful counteroffensive military operations of the Ukrainian Galician Army (UHA) against the Polish Army during the Polish-Ukrainian War in 1918–1919. Around 19,000–20,000 Ukrainians pushed back the Poles along the entire front of the 39,000-strong Polish Army, reinforced by the French Third Republic.