Any view we take concerning the use of force to resist evil must have a deep and comprehensive view of the reality of evil in this world. It would be comforting if we could find refuge in a principle like “it is absolutely wrong to kill” or “it is absolutely right to kill in self-defense.” But the reality of this fallen world makes such certainty impossible.
While almost all wars have been immoral (just as many police actions and acts of personal aggression are immoral), it is not possible to demonstrate that all acts of aggression are immoral.
Most wars are an abomination in the eyes of God, and, regrettably, many Christians have identified themselves with many of them. I believe this greaves God... However, under certain circumstances, there seems no alternative than protecting the innocent against evil.One of the most serious mistakes that Christians can make is to believe that participation in a "just war" is grounds to ignore Jesus’ command for them to love their enemies (Matthew 5:43-47 ). Wartime propaganda always tries to arouse hatred towards the enemy by portraying them as unqualifiedly evil.
I believe when Jesus said love your enemies he didn't mean from 10,00 feet while dropping bombs on them...
I believe Jesus presented us with a third way.
Jesus calls us to turn the other cheek. Not pick up a sword and retaliate. But turn the other cheek is not just lay down and take it pacifism. See Jesus is giving this concept in the context of first century Jewish culture.