Errrm Russia is literally in the process of attacking a neighbouring country right now. They are tying their very best to make this country collapse with things far worse than sanctions, and no one has started WW3 yet.

It is very likely that there has always been war. Those have been documented even between chimpanzees and those fights absolutely were lethal. https://en.m.wikipedia.org/wiki/Gombe_Chimpanzee_War

Love me some good old fachwerkhäusers