Army Lt. Col. Richard Peacock, commander of the 1st Brigade Engineer Battalion, 1st Armored Brigade Combat Team, 1st Infantry Division holds the battalion colors during a change of command ceremony at Bolesławiec, Poland, April 4, 2022. The 1st Brigade Engineer Battalion, also known as "Diehard," is the oldest engineer battalion in the Army, tracing its lineage all the way to 1846.

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Keywords: 1id, atlanticresolve, ceremony, fightasone, strongertogether, victorycorps