The 6th Brigade Engineer Battalion traces its history back over 150 years to its organization as a provisional Engineer Battalion in December 1861. Constituted in July 1866 as the Battalion of Engineers, the unit did not receive its current numerical designation until 1939, when the 6th Engineers (a regiment) was broken up and its 1st Battalion redesignated the 6th Engineer Battalion, 6th Division. In the following years it was redesignated as the 6th Engineer Motorized Battalion (1942) and 6th Engineer Combat Battalion (1943) before again being designated as the 6th Engineer Battalion.
In 2014, the battalion was converted to a Brigade Engineer Battalion and assigned to the 2nd Engineer Brigade, based at Fort Richardson at Joint Base Elmendorf-Richardson in Anchorage, Alaska. Among the battalion’s many honors is credit for participation in no less than six World War I campaigns, augmented by a French Croix de Guerre with palms, and a Philippine Presidential Unit Citation for its part in the Luzon campaign and the liberation of the Philippines in 1944 – 1945.