Major Christopher Cullen accepts the 325th Maintenance Operations Squadron guidon from Col. Craig Hall, 325th Maintenance Group commander, during a Change of Command ceremony June 25 at Tyndall. Major Cullen replaces Maj. Richard Flamand as the new 325th MOS commander. Major Cullen comes to Tyndall from the Secretary of the Air Force International Affairs Military Personnel Exchange Program, Washington, D.C. (U.S. Air Force photo by Lisa Norman)