Children build a house out of scrap wood while U.S. Sailors embarked aboard hospital ship USNS Comfort (T-AH 20) build new classrooms in Tumaco, Colombia, June 5, 2011, during Continuing Promise 2011 (CP11). CP11 is a regularly scheduled mission to countries in Central and South America and the Caribbean, where the U.S. Navy and its partnering nations work with host nations and a variety of governmental and nongovernmental agencies to train in civil-military operations. (U.S. Air Force photo by Staff Sgt. Courtney Richardson/Released)