"poo-le" shill is also the "shitler" shill, obsessed with his own excrements
The UPA / OUN (Organisation of Ukrainian Nationalists - Bandera, there was also OUN-M led by Andriy Melnyk which didn't support the massacres) slaughtered many Poles, they also killed Ukrainians who married or supported Poles, they also killed Czechs, Hungarians, Armenians and kikes living in the area, but most of the victims were Polish. Whole villages or churches full of people during the mass were burned. Ukrainians wanted they homogenous ethnostate and during interwar period some of Polish nationalists like Dmowski planned to polonise them, more radical members of ONR Falanga burned Greek-Catholics churches to achieve that, but the only result was Polish Greek-Catholics identifying themselves as Ukrainians. Poles were generally more wealthy, Lwów / Lviv was dominated by Poles and Ukrainians dominated the rural area around it.
Some Ukrainian civillians were killed by Poles in revenge, but still there were more Polish victims killed by UPA.
Before the war Poles had Border Protection Corps:
During the war Germans sometimes supported Ukrainians in their attrocities, but later they created Schutzmannschaft battalions to defend Poles in Volhynia. Many members of these batalions desertered to join Armia Krajowa, at some moment it is claimed that they actually colaborated with AK which struggled at defending Polish people in the area.
After the war there were also partisans in Poland who fought against communism, last of them has been caught in 1968. Soviet agents infiltrated some of these organisations during the war to make them fight against each other, i.e. one of them convinced AK members to kill leaders of Miecz i Pług (Sword and Plough) claiming that they were Nazi collaborators, which was probably false information. Some of partisans who fought with communism after the war belonged to WiN and NSZ / NZW. and others.
NSZ actually believed that American-Soviet war is going to start soon and they are going to retake the Polish Eastern Borderlands.
WiN allied with UPA to perform Hrubieszów Attack against Soviets and Polish government: