Maybe the US looking inwards is a good thing. The US carries 80% of the defense bill for NATO and 90% of the defense bill for NORAD. Canada with its 0.9% of GPD for defense spending is an embarrassment to all Canadians. Canada is flying 30n yr old  jet fighters won't have any new ships that can keep up with American aircraft carriers until 2025 and our armies newest weapon is the German leopard tank which were loaned  to us 15 years ago and then purchased, like I said what an embarrassment for the good men and women in our armed forces and all Canadians.