Europe will respond in 2 ways: 1. Short term: nothing major because it can't at the moment. 2. Long term: build up a military that is a credible military dete

Europe will respond in 2 ways: 1. Short term: nothing major because it can't at the moment. 2. Long term: build up a military that is a credible military deterrent to the US, probably abandon NATO if the US doesn't, and form alliances with Canada and the UK.