War - Do we need it?

Honesty. Do we really need people dying too early for the sake of our country? I mean I love America but not that much. Why can' the two smartest people in both countries get together and just play tic-tac-toe or checkers? That seems a hell of a lot safer than using guns. I don't know it's just been bothering me because my cousin went to the war and now he's back in the reserves in Florida. Let me know your thoughts.