Technical Sgt. Malachi Woodlee, 459th Maintenance Squadron repair/reclamation craftsman and Nuclear Security Summit volunteer, escorts members of civilian media during the arrival of Prime Minister Shinzo Abe of Japan on the Joint Base Andrews, Md., flight line March 30. More than 20 international heads of state arrived here for the 2016 NSS held in Washington, D.C. The summit provides a forum for leaders to reinforce commitments to securing nuclear materials. (U.S. Air Force photo/Staff Sgt. Kat Justen)