For the last century or so most wars waged by the West are fought under the Geneva Conventions, rooted in Just War Theory of Neo Platonist Church Father St. Augustine, who was rather big on original sin, self sacrifice and guilt culture. The theory tightly describes a number of conditions that justify going to war. But in practice this international law functions as a handicap to those sent into it to actually fight it, the soldiers.
UPDATE:
UPDATE:
Jan. 23, 2022 Pints With Aquinas - Fr. Gregory Pine: What Does the Church Teach About SELF DEFENSE?