Retired Army Command Sgt. Maj. Kenneth Graham speaks at the ceremony where he was named the 2023 Defender of Liberty for the 20th Chemical, Biological, Radiological, Nuclear, Explosives (CBRNE) Command on Aberdeen Proving Ground, Maryland, Feb. 8. Graham was the fifth senior enlisted leader for the 20th CBRNE Command. Army

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Keywords: 20th, aberdeen, award, cbrne, command, defender, graham, ground, kenneth, liberty, maj., proving, sgt.