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Col. Joseph Roos, right, received the Eastern Air Defense Sector guidon from Lt. Gen. Steven S. Nordhaus, Commander, Continental U.S. North American Aerospace Defense Region (CONR)-1st Air Force (U.S. Air Forces Northern and U.S. Air Forces Space) during the unit's change of command ceremony.
Canon EOS 70D
EF-S18-135mm f/3.5-5.6 IS STM
No camera details available.
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