Don't fool yourself. We don't like to thing about great power war because it's so terrible. We think it can't happen to us because it hasn't happened in a generation or two. People have thought this before. They have always been wrong.

I assure you we have not seen the last of war. Ignoring or minimizing the possibility is self-destructive. You must acknowledge the possibility of disaster before you can engage in the active work of averting it.