151107-N-KM939-028 PACIFIC OCEAN (Nov. 7, 2015) Seaman Jordan Lawson from Waverly, Iowa, looks for contacts during his watchstanding duties as aft lookout, aboard the guided-missile destroyer USS Stockdale (DDG 106). Sailors from the John C. Stennis Strike Group are participating in a sustainment training exercise (SUSTEX) to prepare for future deployments. (U.S. Navy photo by Mass Communication Specialist 3rd Class David A. Cox/Released)