U.S. Marine Corps Sgt. Maj. Anthony Spadaro, U.S. Pacific Command senior enlisted leader, left, watches a 51st Maintenance Squadron crew chief perform pre-flight procedures at Osan Air Base, Republic of Korea, Jan. 28, 2019. During his tour of Osan, Spadaro observed how enlisted members performed their daily jobs and tasks. (U.S. Air Force photo by Airman 1st Class Ilyana A. Escalona)