Interesting. Not sure how much a role romantic love plays in war (although the Sacred Band of Thebes would be an interesting study for that), but brotherly love definitely plays a big part. Probably the number 1 motivation I've heard for most soldiers for staying in adverse situations, not quitting, and continuing to fight is to protect fellow soldiers.
Cupid does appear to be an expert marksman. He never seems to miss, and always hits his targets directly in their hearts.
RE: Make Love AND War? Valentine's Day During the First World War