The arguments about the state of the army and if a Chareidi can join is one thing, but to be toileh with the views on the state should not be related. At the end of the day, the question is, is it necessary for me to join the army to save Jewish lives and can we make it compatible with Judaism. How we got into this situation is irrelevant. Unless you want to be the guy who refuses to plug a hole that someone else made in his cabin in the ship.