Oh, so I guess you think other nations should just sit on their tulips and happily collect cash from the USA and not stand with us when we ask for support?
I hardly would say they were "required" to join us, anymore than they are "required" to accept aid.
If any nation felt the war was wrong and they couldn't support us, I am sure they were free to say so, and keep their troops home. But I hardly think if they choose not to give us aid in this effort, we should not be required (or even expected) to give them aid in any way they want.
dago