Since roughly 1945 the western world has been trying to wage war in only nice ways. Trying to make sure that only really bad people get hurt, making sure that no innocent people get hurt. We try not to break stuff, too.
At some point, decent countries are going to have to wake up and remember that war is actually hell and the only way to really win is to make the war so stupendously awful that the other guy never wants to fight you again.
And who the hell cares what other countries think? The “international community” is a complete shibboleth.
Truth!