A war like that is highly unlikely, but EVERY country has in some way antagonized another somewhere on this planet.  It's just humans.

A just war for me would be a formidable enemy capable of taking away our Constitution.  Sometimes I wonder why I still feel that way, because then I look at how we actually behave given the benefits of that document, and I couldn't argue we deserve it.  As a society, this is one of the worst for a supposed "advanced" nation on the planet.  We're rotten to each other, and it's all our fault.  But, I still love that Constitution, because I've seen some societies do well with those rights, so it isn't just theory.

Regardless, Bergdahl should be in Leavenworth.  Attacking the other issues doesn't preclude punishing Bergdahl.  He knew about our behavior, but the idiot still joined.  Why he left sounds more like cowardice than anything.

BTW, if you vote Dem or Repub, you're part of this problem.