President Donald Trump hosts leaders of a dozen Latin American nations at the newly created Shield of the Americas Summit in Miami on Saturday, March 7, 2026. The United States is sending several hundred Army soldiers to train and conduct exercises with local forces in Latin America as the Pentagon expands its campaign to combat drug trafficking in the region, according to U.S. military officials. (Tierney L. Cross/The New York Times) By ERIC SCHMITT, GREG JAFFE and ANNIE CORREAL The United…