War is failed diplomacy and causes ill-will wherever it goes.

“The next war will be a war in which people, not armies, will suffer and
our boasted, hard-earned civilization will do us no good. Cannot the
women rise to this great opportunity and work now, and not have the
double horror, if another war comes, of losing their loved ones, and
knowing that they lifted no finger when they might have worked hard?”

Eleanor Roosevelt, quoted in Eleanor and Franklin by Joseph P. Lash