Marine Corps Lance Cpl. Derrick Wilkerson logs a consolidation sheet during a field exchange program Feb. 6, 2014, at Kadena Air Base, Japan. The 18th Logistics Readiness Squadron provided training to Marines to teach bulk refueling techniques, lab analysis and issuance of aviation fuels. Wilkerson is a 9th Engineer Support Battalion bulk fuel technician. (U.S. Air Force photo/Naoto Anazawa) - Marine Corps Lance Cpl. Derrick Wilkerson logs a consolidation sheet during a field exchange program Feb. 6, 2014, at Kadena Air Base, Japan. The 18th Logistics Readiness Squadron provided training to Marines to teach bulk refueling techniques, lab analysis and issuance of aviation fuels. Wilkerson is a 9th Engineer Support Battalion bulk fuel technician. (U.S. Air Force photo/Naoto Anazawa)