I think it was a stupid petty revenge for downed Donbas IL-76 loaded with military supplies and fighters. Of course, the war was not officially announced, but the shelling civilian towns underway, thousands of people were forced to leave their homes and flee to save a life for themselves and their children. This fascists consider normal, and that their plane was shot down - it is, of course, do not like. They think it is terrorism. But I believe that in time of war it is quite admissible measure - to prevent sending reinforcements to his opponent. Militias fighting with the military, and Bandera shelling civilians. Time to have the world understand this very significant difference