World War II The
1st Engineer Amphibian Brigade was activated at
Camp Edwards,
Massachusetts on 15 June 1942. Some 2,269 men were transferred from existing units, the
37th Engineer Combat Regiment providing the nucleus of the boat regiment, and the 87th Engineer Heavy Ponton Battalion that of the shore regiment. Brigadier General
Henry C. Wolfe was assigned as commanding general on 7 July 1942. The brigade trained until 15 July, when it was assigned to the Amphibious Training Command. The brigade was pulled from the Amphibious Training Center early and sent to England to participate in
Operation Sledgehammer, departing from the
New York Port of Embarkation on 5 August, and arriving on 17 August. Elements of the brigade participated in the
Operation Torch. The 531st Shore Regiment and 286th Signal Company acted as the shore party for the
1st Infantry Division, while the 2nd Battalion, 591st Engineer Boat Regiment was reorganized as a shore battalion, and operated in support of Combat Command B,
1st Armored Division. Brigade headquarters departed
Glasgow on 24 November, and landed in North Africa on 6 December. Wolfe became chief engineer at the
Services of Supply on 22 February and Colonel R. L. Brown of the 531st Engineer Shore Regiment acted as commander. Wolfe rejoined the brigade on 22 March 1943, but on 25 May he became S-3 at
Allied Force Headquarters, and was replaced by Colonel
Eugene M. Caffey. On 10 May 1943, the brigade was redesignated the
1st Engineer Special Brigade. The 591st Boat Regiment was detached, as was the 561st Boat Maintenance Company, which remained in England working on Navy landing craft, but the
36th and 540th Engineer Combat Regiments were attached for the 10 July
Allied invasion of Sicily (Operation Husky), bringing the strength of the brigade to over 20,000. The brigade then participated in the
Allied invasion of Italy at
Salerno (
Operation Avalanche) on 9 September. In November 1943, the headquarters of the 1st Engineer Special Brigade, along with the 531st Shore Regiment, 201st Medical Battalion, 286th Signal Company, 262nd Amphibian Truck Battalion and 3497th Ordnance Medium Automotive Maintenance Company, returned to England to participate in the invasion of Normandy (
Operation Overlord). This nucleus of 3,346 men was built up to a strength of 15,000 men for Overlord. During
Exercise Tiger, a rehearsal for the Normandy operation on 28 April, German
E-Boats attacked a convoy of
landing ships, tank (LSTs) of the
XI Amphibious Force carrying troops of the brigade. Two LSTs were sunk, and the brigade lost 413 men dead and 16 wounded. The exercise was observed by Lieutenant General
Omar N. Bradley, who, unaware of the sinking of the LSTs, blamed the resulting poor performance of the brigade on Caffey, and had him temporarily replaced for the Normandy landings by Brigadier General
James E. Wharton. The brigade participated in the
D-Day landing on
Utah Beach, and operated as Utah Beach Command until 23 October 1944, and then as the Utah District of the Normandy Base Section until 7 December 1944. Under the command of Colonel
Benjamin B. Talley, the brigade headquarters returned to England, and embarked for the United States on 23 December. It arrived at
Fort Dix,
New Jersey, on 30 December. After four weeks leave, it reassembled at
Fort Lewis,
Washington. Part of the brigade headquarters went by air to
Leyte to join the
XXIV Corps for the
invasion of Okinawa, while the rest traveled directly to
Okinawa on the . The brigade was in charge of unloading on Okinawa from 9 April to 31 May. It then prepared for the
invasion of Japan. This did not occur due to the end of the war, and the brigade landed in Korea on 12 September 1945. Its final commander was Colonel Robert J. Kasper, who assumed command on 1 November 1945. The brigade was inactivated in Korea on 18 February 1946. Organization for the landing in Normandy: • Brigade Headquarters • 531st Engineer Shore Regiment • 24th Amphibian Truck Battalion • 462nd Amphibian Truck Company • 478th Amphibian Truck Company • 479th Amphibian Truck Company • 306th Quartermaster Battalion • 556th Quartermaster Railhead Company • 562nd Quartermaster Railhead Company • 3939th Quartermaster Gas Supply Co • 191st Ordnance Battalion • 3497th Ordnance Medium Automotive Maintenance Company • 625th Ordnance Ammunition Company • 161st Ordnance Platoon • 577th Quartermaster Battalion • 363rd Quartermaster Service Company • 3207th Quartermaster Service Company • 4144th Quartermaster Service Company • 261st Medical Battalion (Amphibious) • 449th Military Police Company • 286th Joint Assault Signal Company • 33rd Chemical Decontamination Company
Postwar On 30 September 1986, the brigade was reformed at
Fort Leonard Wood, Missouri, as the
1st Engineer Brigade, and was assigned to the United States Army Engineer School within the
Training and Doctrine Command. ==Current Structure==