KIRTLAND AIR FORCE BASE, N.M. --  Col. Timothy Sejba receives the Advanced Systems &amp; Development Directorate guidon during a change of command ceremony July 13 here, as Lt. Gen. John Thompson, commander of the Space and Missile Systems Center, Los Angeles Air Force Base, Calif., presides. The directorate and its parent SMC are both under Air Force Space Command. (U.S. Air Force photo by Todd Berenger)
Todd Berenger, U.S. Air Force
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