He'll has passed through it so many times - the WWI Bukovina front passed through there three times. Part of the ideology, as I understand it, is that there has been so much atrocity committed by foereigners whether it is Russians, Poles, Germans or whatever other country marched through raping and pillaging, that atrocious acts against anyone not "Ukranian" is wholly justified. This virulent hatred makes sense from an evolutionay biology point of view.
Volhynia massacres happened not that long ago. My blood can boil a bit if I argue whether it was the Civil War or the War Between the States. Stir things up in Galicia and Volhynia, as US policy has been, and nothing good comes from it.
Polish President Andrzej Duda greeted with ovations in the streets of Lviv