U.S. Marine Corps Lance Cpl. Robert W. Luker, a hygiene equipment operator with 8th Engineering Support Battalion, Logistics Combat Element, attached to Special-Purpose Marine Air-Ground Task Force Continuing Promise 2010, assembles a playground set outside Puerto Barrios, Guatemala, on Sept. 8, 2010. U.S. service members and civilians were deployed in Guatemala to support Continuing Promise, a humanitarian assistance operation.