I agree some terms and concepts should be defined to further the discussion. BUT…
Since WW II, and not including WW II, I’d have a lot of trouble calling any of the US’s wars “just,” even if excluding the question of the actual conduct of the war. Some were unequivocally *not *just wars, I think. US involvement in Vietnam, certainly (though hindsight is unobstructed by the spirit of the age–i.e., fear of communisim); and the most recent Iraq war.
And what counts as a war (or as participation in the war)? Certainly, American involvement in the Iran-Iraq conflict was not just, nor American involvement in so much of the unpleasantness in Central and South America.
Assuming that war should be considered a “human act,” the morality a war is dependent on the object chosen, the end in view/intention, and the circumstances of the action. I can’t help but believe that every military action the US has been involved in since 1945 has been driven by bad intentions. Furthermore, the consequences of American military efforts have so often been so horrific, that it is difficult for me to see them as just wars.
The just-war question is a good one that seems too little discussed in the public square. What are the changes you think Ryan and Biden will bring it up in their debate?