“I’m addressing the international arena and their agreement that both of those wars were “illegal”.”
As I am as well. Acting in the “international arena” doesn’t free American politicians from the constraints of the Constitution, unless we allow it.
And no, the UN doesn’t have the responsibility for investigating and assigning responsibility under the Constitution. Only Congress may:
“...define and punish Piracies and Felonies committed on the high Seas, and Offences against the Law of Nations...”
Note the words “define” and “punish”. In addition, as I have already pointed out, the UN Treaty does not trump the Constitution.
That’s all well and good, but I’m saying that the UN critters said our attacks were illegal based on their rules.
Were they illegal? Only if you use their rules.