Christianity teaches peace but that does NOT mean we have to be pacifists. “Peace at all costs” is simply unacceptable and is NOT what the Bible teaches.
Given the sinful nature of man, the use of force, or at least the threat of it, is needed to both establish justice and maintain it. LIke it or not, that's just the way the world is.
That's why in this course you will learn the BRILLIANT thought of one of the greatest Christian theologians of all time on the morality of war and why he says occasional uses of force are necessary and bring about a greater amount of overall peace and goodness than pacifism ever could.