U.S. Marines with Combat Logistics Battalion 31, 31st Marine Expeditionary Unit, and U.S. Navy Sailors assigned to the USS Green Bay (LPD 20) conduct a Foreign Object Debris (FOD) walk on the flight deck of the ship, at sea, March 8, 2015. The Marines and Sailors are currently conducting their Spring Patrol of the Asia-Pacific region. (U.S. Marine Corps photo by GySgt Ismael Pena/Released)