Senior leaders, service-members, civilians and Soldiers from U.S. Southern Command, U.S. Army South, Joint U.S. Services and Partner Nation Militaries including Brazil, Colombia, and Chile among others, gathered at JBSA-Ft. Sam Houston, July 27, for a Rehearsal of Concept drill in preparation for PANAMAX 2018. PANAMAX begins next week and is a U.S. Southern Command sponsored, U.S. Army South led joint multi-national military training exercise in defense of the Panama Canal. Over 20 partner nations militaries and defense forces will participate in this joint exercise - one of the largest in the western hemisphere. (Photos by U.S. Army South Public Affairs)