BTW if Trump tried something like that today, citing that order, the supreme court would overrule it in a heart beat.
As I said, for Trump to do it, he would have to first get congress to make a declaration of war.
Listen carefully next time. You're forcing me to repeat myself.
Child, a use of force authorization from congress is the same thing. You can only declare war against a nation state. But we haven't used the words "declaration of war" since WWII, but we've fought several since.