I personally feel that America SHOULD pull influence/military completely out of Europe as they are well recovered from WW2 and should now be able to afford to have full militaries to handle any bullies in the region. We should stop all our foreign wars and are more or less doing that under Obama and now Trump. Let the Europeans deal with the Middle East since it is their backyard and not ours. I do think we should keep influence in East Asia though provided that Japan, Taiwan, Korea would like us to stick around. That's a sane foreign policy. I'm sure the Europeans will be angels in maintaining their political sovereignty.