| Deployment of Divisions and Brigades to Vietnam Unit | Date Arrived in Vietnam | 1st Cavalry Division | September 1965 | 1st Infantry Division | October 1965 | 2d Brigade* | July 1965 | 4th Infantry Division | October 1965 | 2d Brigade* | August 1966 | 1st Brigade, 5th Infantry | Division June 1968 | 9th Infantry Division | December 1966 | 2d Brigade* | January 1967 | 23d Infantry Division | September 1967 | 11th Infantry Brigade* | December 1967 | 196th Infantry Brigade* | August 1966 | 198th Infantry Brigade* | October 1967 | 25th Infantry Division | April 1966 | 2d Brigade* | January 1966 | 3d Brigade* | December 1965 | 3d Brigade, 82d Airborne Division | February 1968 | 10 1st Airborne Division | December 1967 | 1st Brigade* | July 1965 | 173d Airborne Brigade | May 1965 | 199th Infantry Brigade | December 1966 |
* Arrived separately. Maneuver Elements Assigned to Divisions and Brigades in Vietnam 30 June 1969 Division/Brigade | Battalions | Inf | Mech Inf | Mod lnf | Armor | Total | 1st Cavalry Division | | | 9 | | 9 | 1st Infantry Division | | 2 | 7 | | 9 | 4th Infantry Division | | 1 | 8 | 1 | 10 | 1st Brigade, 5th Infantry Division | | 1 | 1 | 1 | 3 | 9th Infantry Division | 2 | 1 | 7 | | 10 | 23d Infantry Division | | | 11 | | 11 | 25th Infantry Division | | 3 | 6 | 1 | 10 | 1st Brigade, 82d Airborne Division | | | 3 | | 3 | 101st Airborne Division | | | 10 | | 10 | 173d Airborne Brigade | | | 4 | * | 4 | 199th Infantry Brigade | | | 4 | | 4 | Total | 2 | 8 | 70 | 3 | 83 |
* A company. Maneuver Element Mix of Divisions and Brigades on Active Duty Outside Vietnam, 30 June 1969 Battalions Unit | Location | Inf | Mech Inf | Abn lnf | Armor | Total | 1st Armored Division | Fort Hood, Tex. | | 4 | | 4 | 8 | 2d Armored Division | Fort Hood, Tex. | | 4 | | 4 | 8 | 2d Infantry Division | Korea | 5 | 2 | | 2 | 9 | 3d Armored Division | Germany | | 5 | | 6 | 11 | 3d Infantry Division | Germany | | 6 | | 4 | 10 | 4th Armored Division | Germany | | 5 | | 6 | 11 | 5th Infantry Division | Fort Carson, l Colo. | | 8 | | 2 | 10 | 7th Infantry Division | Korea | 5 | 2 | | 2 | 9 | 8th Infantry Division | Germany | | 6 | | 4 | 10 | 24th Infantry Division | Fort Riley,2 Kans. | | 6 | | 3 | 9 | 82d Airborne Division | Fort Bragg,3 N.C. | | | 9 | | 9 | 29th Infantry Brigade | Hawaii | 3 | | | | 3 | 171st Infantry Brigade | Alaska | | 2 | | | 2 | 172d Infantry Brigade | Alaska | | 2 | | | 2 | 193d Infantry Brigade | Canal Zone | 3 | | | | 3 | 194th Armored Brigade | Fort Knox, Ky. | 1 | | | 2 | 3 | | TOTAL | 17 | 52 | 9 | 39 | 117 |
1 Does not include the 1st Brigade in Vietnam, but does include the 69th Infantry Brigade. 2 One brigade in Germany. 3 Does not include the 1st Brigade in Vietnam, but does include the 4th Brigade, 82d Airborne Division. National Guard Divisions and Brigades, 1968 Unit | Location | 26th Infantry Division | Massachusetts and Connecticut | 28th Infantry Division | Pennsylvania, Maryland, and Virginia | 30th Armored Division | Alabama, Mississippi, and Tennessee | 30th Infantry Division (M)* | North Carolina, South Carolina, and Georgia | 38th Infantry Division | Indiana, Michigan, and Ohio | 42d Infantry Division | New York and Pennsylvania | 47th Infantry Division | Illinois, Iowa, and Minnesota | 50th Armored Division | New Jersey, New York, and Vermont | 29th Infantry Brigade | Hawaii and California | 32d Infantry Brigade | Wisconsin | 33d Infantry Brigade | Illinois | 36th Infantry Brigade | Texas | 39th Infantry Brigade | Arkansas | 40th Armored Brigade | California | 40th Infantry Brigade | California | 41st Infantry Brigade | Oregon | 45th Infantry Brigade | Oklahoma | 49th Infantry Brigade | California | 53d Infantry Brigade | Florida | 67th Infantry Brigade (M)* | Nebraska | 69th Infantry Brigade | Kansas | 71st Airborne Brigade | Texas | 72d Infantry Brigade (M)* | Texas | 81st Infantry Brigade | Washington | 92d Infantry Brigade | Puerto Rico | 256th Infantry Brigade | Louisiana |
*Mechanized. Redeployment of Divisions and Brigades From Vietnam Unit | Date Redeployed | | Remarks | 1st Cavalry Division (less 3d Brigade) | April 1971 | Replaced the 1st Armored Division at Fort Hood, Texas | 3d Brigade | June 1972 | Replaced the 4th Brigade, 1st Cavalry Division | 1st Infantry Division | April 1970 | Replaced the 24th Infantry Division at Fort Riley, Kansas, and in Germany | 4th Infantry Division (less 3d Brigade) | December 1970 | Replaced the 5th Infantry Division at Fort Carson, Colorado | 3d Brigade | April 1970 | Replaced the 4th Brigade, 5th Infantry Division, at Fort Carson, Colorado | 1st Brigade, 5th Infantry Division | August 1971 | Inactivated | 9th Infantry Division (less 3d Brigade) | July 1969 | Inactivated | 3d Brigade | October 1970 | Inactivated | 23d Infantry Division | November 1971 | Inactivated | 11th Infantry Brigade | November 1971 | Inactivated | 198th Infantry Brigade | November 1971 | Inactivated | 25th Infantry Division (less 2d Brigade) | December 1970 | 1st Brigade replaced the 4th Brigade, 25th Infantry Division, at Schofield Barracks, Hawaii; concurrently division headquarters and 3d Brigade reduced to zero strength | 2d Brigade | April 1971 | Reduced to zero strength | 3d Brigade, 82d Airborne Division | December 1969 | Replaced the 4th Brigade, 82d Airborne Division at Fort Bragg, North Carolina | 101st Airborne Division (less 1st, 2d, and 3d Brigades) | March 1972 | Returned to Fort Campbell, Kentucky | 1st Brigade | January 1972 | Returned to Fort Campbell, Kentucky | 2d Brigade | February 1972 | Returned to Fort Campbell, Kentucky | 3d Brigade | December 1971 | Returned to Fort Campbell, Kentucky | 173d Airborne Brigade | August 1971 | Inactivated at Fort Campbell, 1972 | 196th Infantry Brigade | June 1972 | Inactivated |
1) The preceding charts are courtesy of the Center of Military History (Army Lineage Series), "Maneuver and Firepower" |
