There’s lots of talk around Washington and in the Pentagon these days about how and why the US military must extricate from its various small wars in the Mideast and “pivot” to a focus on “Great Power” conflict. Heck, Trump’s National Security Strategy lays it out quite clearly. The administration calls the policy “principled realism” – which sounds great – but let’s call it what it really is: a new strategy to pressure and contain four key global “adversaries” – Russia, Iran, China, and North Korea.