U.S. Air Force Col. Duke Ota, commander,154th Mission Support Group presents the 154th Logistics Readiness Squadron guidon to U.S. Air Force Maj. Grady Green during Green's assumption of command ceremony held at Joint Base Pearl Harbor-Hickam, Hawaii, Oct. 02, 2016. The assumption of command ceremony is a time honored military tradition in which the incoming commander assumes command of a unit. (U.S. Air Force National Guard photo by Airman 1st Class Stan Pak/released)