3/1/2012 - Airmen from Kadena Air Base wait for the Foreign Object Debris (FOD) walk to begin on Kadena Air Base, Japan, Feb. 29, 2012. The FOD walk is planned to keep the airfield clean and free of objects such as aircraft and vehicle fasteners, rocks and any hard or soft objects that can damage an aircraft engine or airframe. (U.S. Air Force photo by Airman 1st Class Justin Veazie)

3/1/2012 - Airmen from all over Kadena Air Base, Japan participate in a Foreign Object Debris (FOD) walk on Kadena Air Base, Japan, Feb. 29, 2012. The purpose of the FOD walk is to make sure the airfield is clean and free of substances and debris that can damage an aircraft engine or airframe. (U.S. Air Force photo by Airman 1st Class Justin Veazie)

3/1/2012 - Kadena Air Base Airmen participate in the Foreign Object Debris (FOD) walk on Kadena Air Base, Japan, Feb. 29, 2012. The FOD avoidance is a task for all who work on, around or traveling through the flight line. (U.S. Air Force photo by Airman 1st Class Justin Veazie)