The following units were attached on 26 August 1950 per General Order 42, Headquarters 11th Airborne Division dated 25 August 1950:
Platoon, Ambulance Company, 11th Airborne Medical Battalion
Platoon, Clearing Company, 11th Airborne Medical Battalion
Post Korean War
U.S. Army
Believing that future battlefields would be dominated by tactical nuclear weapons, the U.S. Army broke up its infantry regiments in the mid-1950s and formed Battle Groups, four or five of which composed a pentomic infantry division. Although the pentomic structure was deemed to be a failure, reorganizations during the 1960s replaced the infantry regimental combat teams with brigades that were modeled after the World War II combat commands employed by American armored divisions. As a consequence, infantry battalions that were formerly grouped into regiments were scattered among the new brigades.
U.S. Marine Corps
The U.S. Marine Corps has retained the regiment as a basic unit smaller than a division but larger than a battalion, and it continues to employ reinforced regiments as RCTs in Iraq and Afghanistan. Under current US Marine Corps doctrine, a Marine Division typically contains three organic Marine infantry regiments. Whenever a Marine Expeditionary Brigade is formed within its parent Marine Expeditionary Force, one of the division's infantry regiments is designated as the base of the regimental combat team and serves as the ground combat element of the MEB. The regiment, commanded by a colonel, consists of a Headquarters Company and three identical Marine infantry battalions. The regiment is then heavily reinforced by other division assets to form the RCT. These reinforcements typically include:
One artillery battalion, consisting of a headquarters battery and four identical firing batteries, each containing six 155 mm towed howitzers;
An armored vehicle battalion equivalent, consisting of an assault amphibian company , a light armored reconnaissance company and a tank company , each drawn from their parent division's organic type battalion;
A combat support battalion equivalent, consisting of a combat engineer company, a reconnaissance company, and a support company, formed from the parent division's headquarters battalion, consisting of platoons from the headquarters, communications, and truck companies.
The RCT receives dedicated logistical support from a combat logistics battalion, which is organic to the combat logistics regiment of the MEB.
Therefore, the RCT is roughly the same size and has generally the same number of battalions as a US Army brigade combat team. However, the RCT as the ground combat element of a MEB, is combined with a regimental equivalent Marine aircraft group as the air combat element, a battalion-sized command element, and the aforementioned combat logistics regiment as the to complete the organizational structure of the MEB.
