U.S. Air Force Brig. Gen. Braden Sakai passes the 154th Operations Group guidon to U.S. Air Force Col. John York as York assumed command of the Hawaii Air National Guard group at Joint Base Pearl Harbor Hickam-Hawaii, Feb. 21, 2016. The transfer of units colors is a military tradition that symbolizes transfer and acceptance of command. (U.S. Air National Guard photo by Airman 1st Class Robert Cabuco/released)