Capt. Erich W. Diehl, Commander, Task Force (CTF) 75, and Rear Adm. Marc H. Dalton, Commander, Expeditionary Strike Group 7, Amphibious Force 7th Fleet, Task Force 76, tour a Mark VI Patrol Boat during Valiant Shield 2016 in Santa Rita, Guam, Sep. 21, 2016. Valiant Shield is a biennial U.S. Air Force, Navy and Marine Corps exercise held in Guam, focusing on real-world proficiency in sustaining joint forces at sea, in the air, on land and in cyberspace. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Arthurgwain L. Marquez/Released)