Stepan Bandera was a nationalist, racist, fascist, who is still idolized by a huge swath of Western Ukrainians and hated by a huge swath of Eastern Ukrainians, also in Crimea (Russia), and in the independent regions of Donetsk.
The neocons of the US backed and funded the nationalist-racist fascists in Ukraine who took over the country and started burning Russians and labor-union members to death, alarming Putin, etc. The rest is still history in the making.
Graham Phillips has done an excellent job showing exactly who Stepan Bandera was and what he stood for. You better watch this video before YouTube censors it for telling the truth: