We might send nukes next time but we're not going to spill American blood... and by ‘sending nukes’ I don't mean handing them over to cowards - we'll send them in the air...
There’s more to it than that. Remember, Germany declared war on the USA in 1941 too; and there were quite a few “wussy” voices on our soil that didn’t want to go to war in Europe until Adolf decided to drag us into it.
Today, such voices are “wussier” still. Note that they are trying their utmost to shout down Trump when he speaks the truth about the EU.