I love how they pulled out the "just war" theory developed now about 1500 years ago, when the world power structure was smaller than the UN security council. Okay, so it was updated by Aquinas and revised over the years...
but the principles are still the same, and they still don't relate to a modern world where many countries have split into ethnic factions so small, no union will ever be found.
I love how the left continuously uses modern standards of moral justice to rewrite and critique history whether it's 150 years ago or two thousand. Yet, they can justify relying on a principle developed to ward off the brutalities of the ancient world.
The "ethnic factions" were always there. It was (largely) Great Britain which drew the stupid boundaries and caused many of the problems.
See WWI, WWII, histories thereof, with treaty appendices.
The principles of JW still apply.