Marine Staff Sgt. Corey Riley, U.S. Central Command advanced communicator, and Air Force Staff Sgt. John Operana, 1st Airlift Squadron communication systems operator, test a video conferencing system during a flight on board a C-40B aircraft to Naval Air Station Souda Bay, Greece, Feb. 4, 2017. Secure and non-secure Video Teleconference and other communications are vital to all 89th Airlift Wing passenger missions, as directed by the White House or Air Force Vice Chief of Staff for Special Air Missions. (U.S. Air Force photo by Senior Master Sgt. Kevin Wallace)