Col. Hans F. Otto, right, accepts the guidon of the 123rd Medical Group from Col. Bruce Bancroft, commander of the 123rd Airlift Wing, during a change-of-command ceremony at the Kentucky Air National Guard Base in Louisville, Ky., Sept. 11, 2022. Otto is replacing Col. Michael A. Cooper, who has served as the group’s commander since 2014 and is retiring. (U.S. Air National Guard photo by Dale Greer)