Pass the guidon

U.S. Air Force Col. Steven Ramer, 23d Wing vice commander, passes the guidon to Col. Alvis Headen, new 23d Medical Group commander, during a change of command ceremony July 27, 2012, at Moody Air Force Base, Ga. The CoC ceremony is a military tradition that represents a formal transfer of authority from one leading commander to the other. (U.S. Air Force photo by Senior Airman Eileen Meier/Released)

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Relieved of command

U.S. Air Force Colonels Steven Ramer, 23d Wing vice commander, Mike Koppen, former 23d Medical Group commander and Alvis Headen, new 23d MDG commander, perform the change of command ceremony July 27, 2012, at Moody Air Force Base, Ga. Koppen was relieved from the 23d MDG as commander and Headen assumed command. (U.S. Air Force photo by Senior Airman Eileen Meier/Released)

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Salute to new 23 MDG commander

Airmen from the 23d Medical Group render the first salute to U.S. Air Force Col. Alvis Headen, 23d MDG commander, after he assumed command during the 23 MDG change of command ceremony at the fuels barn July 27, 2012, at Moody Air Force Base, Ga. Retired Col. Mark Koppen was relieved of his duties and spoke about how honored he was to lead the 23 MDG. (U.S. Air Force photo by Senior Airman Eileen Meier/Released)

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National anthem

U.S. Air Force Colonels Steven Ramer, 23d Wing vice commander, Mike Koppen, former 23d Medical Group commander and Alvis Headen, new 23d MDG commander render a salute during the playing of the national anthem while the Moody Honor Guard post the colors during the 23d MDG change of command ceremony July 27, 2012, at Moody Air Force Base, Ga. Headen assumed command of the 23d MDG and a retirement ceremony was held for Koppen, who retired after being relieved of command. (U.S. Air Force photo by Senior Airman Eileen Meier/Released)

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Applause from family and friends

Family and friends clap after U.S. Air Force Col. Alvis Headen assumed command of the 23d Medical Group and Col. Mike Koppen was relieved during a change of command ceremony July 27, 2012, at Moody Air Force Base, Ga. (U.S. Air Force photo by Senior Airman Eileen Meier/Released)

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23d MDG holds change of command ceremony

Published July 30, 2012

Pass the guidon

Relieved of command

Salute to new 23 MDG commander

National anthem

Applause from family and friends