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21st security forces gets new commander
PETERSON AIR FORCE BASE, Colo. – Col. Charles Arnold, 21st Mission Support Group commander, passes the 21st Security Forces Squadron command to Lt. Col. Nicole Roberts, incoming 21st SFS commander, during the squadron’s change of command ceremony May 30. Before assuming command of the 21st SFS, Roberts was the chief of the Air Force Space Command Inspector General operations branch, and replaces outgoing commander Lt. Col. Sean Tiernan, who will join AFSPC A7. (U.S. Air Force photo/Robb Lingley)

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Peterson SFB Schriever SFBCheyenne Mountain SFSThule AB New Boston SFS Kaena Point SFS Maui