Debate military issue

I have two sons who are at opposite poles on the military issue. Rick thinks the military exists "only to kill people" and says so at every chance he gets.

Mike thinks the military is the greatest thing since sliced bread, and plans to make it his career. Needless to say, when they get together, sparks fly.

A recent interchange went something like this:

Rick: "'Military intelligence' is a contradiction in terms."

Mike: "No more than 'civilian worker'."