Originally posted by strategy
Actually the concept of a just war stems farther back than the 4th Century; the Romans had a very simmilar and very involved concept for when a war could or could not be declared
The Roman fetial priests were used for the solemn official declaration of war. According to fetial law, Rome could enjoy divine favour only if it waged just wars (wars of self-defense).
Of course, the Romans were masters of twisting this concept to fit their own interests.
This is why America is called the New Rome
-SS