Lt. Col. Joshua Yerk, 436th Civil Engineer Squadron commander, addresses attendees after assuming command of the 436th CES during a change of command ceremony held at the base fire station on Dover Air Force Base, Delaware, June 23, 2022. Team Dover Airmen, family members and guests watched Yerk assume command of the 436th CES. Presiding officer for the ceremony was Col. Phelemon Williams, 436th Mission Support Group commander. (U.S. Air Force photo by Roland Balik).
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