The AIUF, like all policies that are any good, is not some abstract timeless textbook slogan but has to relate to concrete situations on the ground now. You are th eone who keeps raising it not me.
It is hard to think of concrete examples to be honest and i am not convinced that we need to search real world examples to fit text book schema. i think rather articualte what is best for working class liberation under particular circumstances and proceed from concrete situations.
So if the US are threatening Iran as they are then put our energy into raising solidarity with Iranian activists in iran, Iranian migrants here and building the antiwar movement for troops out now from Iraq and Afghanistan and for exemplary actions such as strike action against an attack on Iran.
You may say how does this relate to some textbook Trotskyist policy? I don't know or care. Policies including Trotskyist ones are developed as guides to action not some kind of template for all times.