I find it a little bit funny that a citizen of Western Europe would talk to anyone about being pampered. There is no reason to believe the US economy would be any more greatly effected than anyone elses. In fact, with undisputed access to what is even to this day the mostly unexploited resources of all of North America, at least war footing wise we are far better off than most of our enemies (scenario). Did France do this when the German's came through? I am not sure what the cause of this war is, but nothing in the OP hints anything at this being an all or nothing/fight to the last man/murder my children before getting captured ordeal. You realize where the border of China is in relation to that map right?