The guided missile destroyer USS Oscar Austin (DDG 79) steams off the coast of Florida. Austin is underway with the USS Harry S. Truman (CVN 75) Battle Group, participating in a Joint Task Force Exercise (JTFEX). Guided missile destroyers operate in support of carrier battle groups, surface action, amphibious and replenishment groups and are multi-mission, anti-air, anti-surface, and anti-submarine warfare combatants. U. S. Navy photo by Photographer's Mate 1st Class Michael W. Pendergrass.