(Left to right) U.S. Air Force Senior Airman Nelson Jones, 535th Airlift Squadron C-17 loadmaster, and Japan Air Self-Defense Force (JASDF) Master Sgt. Shiro Suzuki, 10th Fire Unit Chitose Air Base, check a JASDF Electric Power Plant vehicle before loading onto a C-17 Globemaster III at Yokota Air Base, Japan, Nov. 6, 2016, during exercise Keen Sword 2017. Units from the U.S. military conduct training with their JASDF counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. (U.S. Air Force photo by Yasuo Osakabe/Released)

A Japan Air Self-Defense Force (JASDF) Electric Power Plant (EPP) vehicle with the 10th Fire Unit, Chitose Air Base is driven in reverse onto a U.S Air Force C-17 Globemaster III at Yokota Air Base, Japan, Nov. 6, 2016, during exercise Keen Sword 2017. This is the first time an EPP vehicle has been loaded onto a U.S. Air Force aircraft. Units from the U.S. military conduct training with JASDF counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

(Center) Japan Air Self-Defense Force (JASDF) Staff Sgt. Tomohiro Kohama, 10th Fire Unit, cuts a blanket at Yokota Air Base, Japan, Nov. 6, 2016, during exercise Keen Sword 2017. JASDF members with the 3rd Air Defense Missile Group 10th Fire Unit loaded an Electric Power Plant vehicle onto a U.S. Air Force C-17 Globemaster III for the first time. Units from the U.S. military conduct training with JASDF counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

(Right to left) U.S. Air Force Airmen 1st Class Ashley Dennis and Galdamez Moran, both assigned to the 730th Air Mobility Squadron as air freight technicians, secure a tie-down chain on a Japan Air Self-Defense Force (JASDF) Electric Power Plant vehicle Nov. 6, 2016 at Yokota Air Base, Japan, during exercise Keen Sword 2017. Units from the U.S. military conduct training with JASDF counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

U.S. Air Force Airman 1st Class Ashley Dennis, 730th Air Mobility Squadron air freight technician, secures a tie-down chain on a Japan Air Self-Defense Force (JASDF) Electric Power Plant vehicle Nov. 6, 2016 at Yokota Air Base, Japan, during exercise Keen Sword 2017. Units from the U.S. military conduct training with JASDF counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo- Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

(Left to right) U.S. Air Force Senior Airman Nelson Jones and Airman 1st Class Lauren Sheppard, both assigned to the 535th Airlift Squadron as C-17 loadmasters, secure a tie-down chain on a Japan Air Self-Defense Force (JASDF) Electric Power Plant vehicle Nov. 6, 2016 at Yokota Air Base, Japan, during the exercise Keen Sword 2017. Units from the U.S. military conduct training with Japan Self-Defense Forces counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

U.S. Air Force Airman 1st Class Lauren Sheppard, assigned to the 535th Airlift Squadron as a C-17 loadmaster, secures a tie-down chain on a Japan Air Self-Defense Force (JASDF) Electric Power Plant vehicle Nov. 6, 2016 at Yokota Air Base, Japan, during exercise Keen Sword 2017. Units from the U.S. military conduct training with Japan Self-Defense Forces counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

Japan Air Self-Defense Force (JASDF) members view the Electric Power Plant vehicle after completing a tie-down at Yokota Air Base, Japan, Nov. 6, 2016, during exercise Keen Sword 2017. Units from the U.S. military conduct training with Japan Self-Defense Forces counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)

A U.S. Air Force crew chief marshals a C-17 Globemaster III at Yokota Air Base, Japan, Nov. 6, 2016, during exercise Keen Sword 2017. Units from the U.S. military conduct training with Japan Self-Defense Forces counterparts at military installations throughout Japan, the Mariana Islands and in the surrounding waters. All participating units train in a comprehensive scenario that is designed to practice the critical capabilities and interoperability required to support the defense of Japan, and to respond to a potential crisis or contingency in the Indo-Asia-Pacific region. (U.S. Air Force photo by Yasuo Osakabe/Released)