21st Signal Brigade Change of Command
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FORT DETRICK, Md. -- Col. Mark Baxter relinquished command of the 21st Signal Brigade to Col. Seena Tucker during a change of command and change of responsibility ceremony July 25 at Fort Detrick, Maryland.

"Col. Baxter led his team and this leadership has greatly improved our Warfighter support. This unit has become the premier communications service provider of choice to our Army units," said Brig. Gen. John W. Baker, commanding general of 7th Signal Command of Baxter's leadership during the ceremony.

Baxter will attend Senior Service College at the U.S. Army War College in Carlisle, Pennsylvania.

Tucker, a native of Alexandria, Virginia, reports to the 21st Signal Brigade from Defense Media Activity in Fort Meade, Maryland, where she served as director of Defense Visual Information.

Tucker served in a variety of assignments during her extensive career. Her previous tours include chief, contingency/plans operations division officer and secretary of the general staff, 5th Signal Command in Mannheim, Germany, and senior communications watch officer, National Military Command Center at the Pentagon in Washington, District of Columbia.

Tucker is a graduate of Virginia State University, Army Command and General Staff College and the U.S. Army War College. She also holds a master's degree from Central Michigan University.

"I am overwhelmed with their [the Soldiers and civilians of the 21st Signal Brigade] immeasurable pride to execute the most unique and challenging communications missions our Army has. They are indeed the standard bearers of Army Values and I'm proud to be a member of your team," Tucker said during the ceremony.

Command Sgt. Maj. Kristine Purnell assumed responsibility from Command Sgt. Maj. Robert Daniel, Jr., as the senior enlisted advisor to the 21st Signal Brigade during the ceremony.

Daniel's next assignment is the Signal Regimental Noncommissioned Officer Academy in Fort Gordon, Georgia, where he will be assume the role of commandant.

Purnell, a native from Bay City, Michigan, comes to the 21st Signal Brigade following a successful tour as the command sergeant major of the U.S. Army Garrison at Camp Humphreys, Korea.

Purnell has served in multiple signal units across the U.S. and overseas and has deployed in support of Operation Desert Storm/Shield and Operation Iraqi Freedom.