I've thought about this question before. If I am put in the situation in combat, where I have to kill a man. Where do my convictions lie? How am I loving this guy as myself and considering him more significant than myself if I am killing him and he probably does not know Christ?

The following is the answer that most Christians give. There is a sense of just judgment even as humans on earth. In theory that is. In practice, its a completely different story. But the mentality is that by killing an enemy combatant, you are in fact saving the lives of those Marines that he is trying to kill and even the effect that he might have in terrorist acts against civilian populations around the world. So in fact, you are saving people by killing.

It's a circular argument though...

-David