There's that too. Though I doubt that it's so much that he wants to undermine peace and stability in Europe as he wants to undermine the integration of a "competing" power bloc. Quite frankly, the US would probably be better off trade-wise if your guys' trade integration had plateaued thirty or forty years ago, particularly from the "unique" slant from which Trump et al view trade. There's a distinct whiff of "nostalgia for those glorious yester-years." Though since he's working for the Russians maybe he DOES want to undermine European peace and stability.