104 Theatre Sustainment Brigade is a specialist logistic support formation of the British Army.

104 Theatre Sustainment Brigade is the Army’s theatre logistic enabling formation whose role is to deliver scalable logistic enabling force elements at readiness and is prepared to provide a 1* HQ to act as or in support of the HQ National Support Element / Joint Force Logistic Component for any UK deployment.

[4] It commands the entire Army’s logistic enabling capabilities ranging from Postal and Courier Services, Movement Control, Port and Maritime (which includes Vehicle Specialist), Operational Hygiene, Mortuary Affairs in addition to providing catering support, fuel storage and distribution, equipment and recovery support and logistic subject matter experts drawn from 2 Operational Support Group.

[4] The Brigade also operates the Sea Mounting Centre at Marchwood and the Joint Air Mounting Centre at South Cerney; ensuring that the UK end of deployments are fully enabled and effective at all times.

[4] In September 2021 the brigade transferred from 1 (UK) Division to the Allied Rapid Reaction Corps.