Chortkiv offensive

Chortkiv offensive
Part of the Polish–Ukrainian War (1918–1919)

Map of the Ukrainian offensive in June 1919
Date7–28 June 1919 (Chortkiv offensive)
28 June – 18 July 1919 (Polish Summer counteroffensive),
Location
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
Antin Kravs
Myron Tarnavsky
Osyp Mykytka
Józef Piłsudski
Józef Haller
Strength
7 June:
19,000 soldiers and officers
Up to 50 artillery batteries
28 June:
24,000 infantry
400 cavalry
376 machine guns
144 artillery pieces
28 June:
38,600 infantry
2,100 cavalry
797 machine guns
207 artillery pieces

The Chortkiv offensive (Ukrainian: Чортківська офензива, Чортків, Polish: Ofensywa czortkowska, Czortków), also known as June Offensive (Ukrainian: Червнева офензива), was a counteroffensive military operation of the Ukrainian Galician Army (UHA) against the Polish Army during the Polish-Ukrainian War of 1918–1919. Initially, the numerically inferior Ukrainian force achieved tactical success along the entire front, pushing back the French-supported Polish troops. However, the offensive failed to achieve strategic success due to lack of ammunition, and after a Polish counteroffensive the Galician Army was forced to retreat across the Zbruch river, leaving Galicia in Polish hands.