LA UNION, El Salvador (Dec. 12, 2011) Sgt. Mark Miller, assigned to the Marine detachment embarked aboard High Speed Vessel (HSV 2) Swift, observes Salvadoran Marines use a compass to help them complete a land navigation course on Plaza De Armas training area. The Marines are supporting Southern Partnership Station 2012, an annual deployment of U.S naval assets in the U.S. Southern Command area of responsibility. U.S. Army photo by Sgt. 1st Class Alan B. Owens