The international space station would have never got off the ground without the US. And the EU is comprised of independent states that rarely agree on anything of importance let alone anything that has to do with military or basic state security decisions. And it doesn't matter how much money you spend on the military you still need the balls and leadership to actually use whatever arms you are making or buying. Outside of England there is not a single European country the US should feel obligated to assist in the event of war. That basically goes for just about every other country in the world except for Canada and possibly Mexico since they actually border the US and Canada actually takes turns with the US when manning the NORAD facilities. And England has shown the willingness to support the US most of the time ever since the end of WW2 so they can still be considered capable and worthy allies. I cannot think of any other state that even comes close to being a US allie. And moral or political support is meaningless when everyone knows that is all they are offering the US. The international communities have made their disdain for the US very clear so lets grant their wishes and let them take care of things. I am sure they will enjoy and prosper under a Russian and Chinese hegemony. They will soon discovery their vaunted social entitlement states can no longer meet it's domestic obligations and provide a credible defense force at the same time. The human race is no where near abandoning warfare no matter how many people fantasize about it. Until, if ever, that changes any state wanting to preserve it's sovereignty will need military capabilities. Conflict, competition, and territorial ambitions have existed since there were enough cavemen to form up sides and beat each other over the head with clubs and knives to secure better caves, hunting grounds, and women. Almost every human on the planet is descended from the people who fought across Europe, Russia, Persia, China, Japan, India, England, North and South America, the middle east, Africa, and damn near every other place in the world since the dawn of human civilization. That behavior is ingrained in our DNA and all the passionate political and social movements in the world is not going to nullify the basic drive for survival built into the human race when push comes to shove.