The difference is that the US didn't start that war.
Irrelevant difference. The Iran-Iraq was was started by Iraq, which US supplied aid to in that war. Ukrainian war was put into motion by the actions of NATO, i.e. US.
Irrelevant difference. The Iran-Iraq was was started by Iraq, which US supplied aid to in that war. Ukrainian war was put into motion by the actions of NATO, i.e. US.