Rear Adm. Matthew T. Bell Jr., commanding officer of District 17, looks on as Cmdr. Michael Frawley (left) receives command of Air Station Sitka from Capt. William Lewin (right) during a change of command ceremony held in Sitka, Alaska, June 28, 2018. A change of command ceremony is a military tradition that represents formal transfer of authority and responsibility from one officer to another. U.S. Coast Guard photo by Petty Officer 2nd Class Derek Mazur.