World War I

The 2nd Brigade, 7th Infantry Division was first constituted and activated in the regular army as the 13th Infantry Brigade on 6 December 1917 at Camp Wheeler, Georgia.^[1] One month later it organized and prepared for deployment to Europe to participate in World War I as a part of the American Expeditionary Force, along with the rest of the division.^[1] The 13th Infantry Brigade was one of two brigades assigned to the division headquarters, the other being the 14th Infantry Brigade.^[2] Serving within the brigade were the 34th Infantry Regiment and the 55th Infantry Regiment, bringing the total strength of the brigade to around 8,000 men.^[3] Most of the brigade sailed to Europe aboard the SS Leviathan.^[4]

During its time in France, the brigade did not participate as a whole in any engagements, though its infantry and reconnaissance elements did engage German forces.^[4] On 11 October 1918 the 13th Brigade and 7th Division first came under shelling attacks. At Saint-Mihiel the units also came under chemical attack.^[4] Elements of the 7th probed up toward Prény near the Moselle River, capturing positions and driving German forces out of the region.^[4] It was around this time that the division first received its shoulder sleeve insignia, which the 13th Brigade wore as a part of the division.^[5]

In early November, the 13th Brigade began readying itself for an attack on the Hindenburg Line with the division, which was part of the Second Army.^[4] The division launched a reconnaissance in force on the Voëvre Plain, but before it could begin a full assault, the Allies signed an Armistice ending hostilities.^[4] After 33 days on the front lines, the 7th Division suffered 1,988 casualties.^[4] It was awarded one campaign streamer for Lorraine.^[1] The brigade performed occupation duties for the next year as it began preparations to return to the continental United States.^[6]

The 13th Brigade returned to the United States in late 1919, and gradually demobilized at Camp George G. Meade, Maryland until 1921.^[4] On 22 September of that year, the Headquarters Company, 7th Division was inactivated, and the 13th and 14th Brigades deactivated with it.^[1]

Reorganization

On 1 July 1940, the 7th Infantry Division was reactivated at Camp Ord, California^[1] Under the command of Major General Joseph W. Stilwell.^[4] The Headquarters element, 13th and 14th Brigades did not reactivate, however, and the division was instead centered around three infantry regiments; the 17th Infantry Regiment,^[7] the 32nd Infantry Regiment,^[7] and the 53rd Infantry Regiment.^[4] The 13th Brigade was not activated for the duration of the war and its headquarters formation was not used to form a new unit.^[7]

Post-Korean War

In the wake of the Korean War, between 1953 and 1971, the 7th Infantry Division defended the Korean Demilitarized Zone. Its main garrison was Camp Casey, South Korea.^[6] During these occupation duties, the division saw a complete reorganization in compliance with the Reorganization Objective Army Divisions plan.^[2] In 1963, the division's former headquarters company grew into the 1st Brigade, 7th Infantry Division while the 13th Infantry Brigade became the 2nd Brigade, 7th Infantry Division.^[2] The 14th Infantry Brigade redesignated at the 3rd Brigade, 7th Infantry Division. These renamed formations retained all of the lineage and campaign credits of their previous designations.^[8] On 2 April 1971, the division and its brigades returned to the United States and inactivated at Fort Lewis, Washington.^[1]

Tactical map of Operation Just Cause.

In October 1974 the 7th and two brigades reactivated at their former garrison, Fort Ord (a National Guard "roundout" brigade, the 41st, would periodically train with the division as its third brigade).^[1] The unit did not see any action in Vietnam or during the post war era, but was tasked to keep a close watch on South American developments. It trained at Fort Ord, Camp Roberts, and Fort Hunter Liggett. On 1 October 1985 the division redesignated as the 7th Infantry Division (Light), organized again as a light infantry division.^[6] It was the first US division specially designed as such. The various battalions of the 17th, 31st, and 32nd Regiments moved from the division, replaced by battalions from other regiments, including battalions from the 21st Infantry Regiment, the 27th Infantry Regiment, and the 9th Infantry Regiment. The 27th Infantry and the 9th Infantry Regiment participated in Operation Golden Pheasant in Honduras.^[9] In 1989 the 2nd Brigade, 7th Infantry Division participated in Operation Just Cause in Panama.^[9]

In 1991 the Base Realignment and Closure Commission recommended the closing of Fort Ord due to the escalating cost of living on the Central California coastline. By 1994, the garrison was closed and the Division was assigned to relocate to Fort Lewis, Washington.^[10] The 2nd Brigade, to include its Headquarters and Headquarters Company along with the 3rd Brigade's 3rd Battalion 17th Infantry Regiment and other assigned military police companies participated in one final mission in the United States before inactivation; quelling the 1992 Los Angeles Riots, called Operation Garden Plot.^[11] In 1993 the division was slated to move to Fort Lewis, WA and inactivate as part of the post-Cold War drawdown of the US Army, but the 2nd and 3rd Brigades of the 7th inactivated at Ft. Ord in 1993. The 1st Brigade relocated to Ft. Lewis and was later reflagged as the 2nd Brigade of the 2nd Infantry Division while the division headquarters formally inactivated on 16 June 1994 at Fort Lewis.^[1]

Unit decorations

Ribbon	Award	Year	Notes
	Republic of Korea Presidential Unit Citation	1945–1948; 1953–1971	for service in Korea

Campaign streamers