| Unit Name: | Operational Group Command |
| Command Structure: | Office of Strategic Services |
| Nickname: | The OGs |
| Motto: | The Glorious Amateurs |
| Battles: | World War II |
| Commander1: | Alfred T. Cox |
| Commander1 Label: | Chief |
| Commander2: | Colonel Russell B. (“Russ”) Livermore |
| Commander2 Label: | Chief |
Operational Group Command (OG), was a branch of the Office of Strategic Services during World War II that specialized in guerrilla warfare and independent operations against designated Axis targets.[1] The original A Teams of US Army Special Forces, Operational Detachments Alpha (ODA), are modeled after the successes of Operational Group Command and its groups.[2]
William Donovan and Millard Preston Goodfellow were concerned with creating guerrilla units within SA/G as early as December 1941.[3]
Operational Group Command was made up of Operational Groups (OGs), which were originally created on 23 December 1942 as a division within the OSS Special Operations Branch (SO), before achieving Branch status.[4]
One key distinction between SO units and the OGs might be the fact that OGs were always dressed in military uniform, and were deployed within the military command structure, whereas SO units were civilian units, often assuming cover identities.
The OGs had a dual leadership command structure. While OGs were deployed in the field, they were under the tactical planning authority of the Theatre Commander, and the strategic planning authority of the Director of the OSS, William Donovan.