A U.S. Army AH-64 Apache helicopter pilot takes signals from a U.S. Navy seaman on the flight deck of the USS Essex during landing qualifications as part of an interoperability exercise in the Persian Gulf, Sept. 28, 2015. The seaman is assigned to the 1st Battalion, 1st Special Operations Group. U.S. Navy photo by Petty Officer 2nd Class Bradley J. Gee