Capt. Ola Gilberg, Frigaard Cave Manager, left, and U.S. Marine Corps Sgt. Maj. Christopher Robinson, right, U.S. Marine Corps Forces Command Sergeant Major, shake hands after a tour of a cave site in Norway, May 9, 2017. The tour was given to senior Marines to show them the workings of Marine Corps Prepositioning Program Norway (MCPP-N). MCPP-N was created to support the rapid aggregation of a flexible Marine Air Ground Task Force.