Polish-Ukrainian War: Facts

while the Ukrainian Chortkiv offensive was eventually pushed back by the Polish army, the initial success of this desperate attack by the Ukrainian Galician Army is considered its finest hour in the Polish-Ukrainian War?
Józef Olszyna-Wilczyński was a high-ranking commander of the Polish Army, a veteran of World War I, Polish-Ukrainian War and the Polish-Soviet War, and was executed by the Soviets during the Polish Defensive War of 1939?