The post remained in active service, being expanded for
World War I into Vancouver Barracks. During World War I it was the home of the Army's
Spruce Production Division under the command of Colonel
Brice Disque. In the interwar years, the 5th Infantry Brigade was based there.
Joseph E. Kuhn commanded the post and the 5th Infantry Brigade from October 1923 to July 1925. From 1936 to 1938, it was commanded by future Army Chief of Staff
George C. Marshall. In
World War II when Vancouver Barracks was used as a staging area for the
Seattle Port of Embarkation, the post included 3,019 acres (12.22 km2), and had billeting space for 250 officers and 7,295 enlisted persons. After WWII, Vancouver Barracks became a sub-installation of Fort Lewis and maintained a small contingent of active duty troops. The majority of billeting space was later transformed into military offices and became home to the
104th Division of the Army Reserve, plus
Washington National Guard units as well. Vancouver Barracks closed in 2011, in accordance with the requirements of the
Base Realignment and Closure Commission. A 2012
Memorial Day ceremony saw the south and east barracks officially turned over to the care of the National Park Service. ==Restoration==