A C-130 Hercules is marshaled onto the flightline before taking off to participate in Operation Christmas Drop 2015 at Yokota Air Base, Japan, Dec. 7, 2015. Over the course of six days, critical supplies will be dropped to 56 Micronesian islands, impacting approximately 20,000 people as part of the longest-running Department of Defense humanitarian aid disaster relief mission. (U.S. Air Force photo by Senior Airman David C. Danford/Released)

A C-130 Hercules prepares to leave for Andersen Air Force Base, Guam, in support of Operation Christmas Drop 2015, at Yokota Air Base, Japan, Dec. 7, 2015. Over 40,000 pounds of goods will be dropped to 56 islands throughout the Commonwealth of the Northern Marianas, Federated States of Micronesia and Palau. (U.S. Air Force photo by Senior Airman David C. Danford/Released)

Members of the 374th Airlift Wing review safety procedures before leaving for Andersen Air Force Base, Guam, in support of Operation Christmas Drop 2015, at Yokota Air Base, Japan, Dec. 7, 2015. This year’s OCD will be the first to include trilateral training with air support from the Japan Air Self-Defense Force and Royal Australian Air Force. (U.S. Air Force photo by Senior Airman David C. Danford/Released)