You know nothing about WW2.

Firebombing Dresden, Hamburg et all added a year to the war, and cost an extra million allied casualties (mostly Soviet).

These and other open attacks on civillians also likely saved Hitler from Operation Valkyrie; via their effect on mid-ranking Wehrmacht officer's views on negotiating with the West.

Ukraine has a foreign legion you could join, if you really believed. You could kill some Russian civillians in Kursk, and find out for yourself what that does to enemy morale.