Trump’s new foreign policy strategy: Realism in theory, imperialism in practice

My last column a couple of weeks ago was titled, “Trump’s new National Security Strategy pushes global realism.”  I commended the move from 1990s “unipolarity,” when America was by far the strongest nation in the world, to a realization we now are in “multipolarity.” That meant two other countries, China and Russia, joined us as the three top powers, each with its own spheres of influence, ours being the Western Hemisphere. 

But I warned President Trump’s policy also “includes a more aggressive stance toward Latin America...