Two fire trucks, assigned to the 374th Civil Engineers Squadron based out of Yokota Air Base, Japan, park on a operational training area during COPE NORTH 18 at Tinian, U.S. Commonwealth of the Northern Marianas Islands, Feb. 20. Through exercises and engagements during COPE NORTH, USAF, Koku Jieitai and RAAF increase interoperability for humanitarian assistance/disaster relief operations. (U.S. Air Force photo by Airman 1st Class Christopher Quail)