22 Field Hospital is a Regular Army medical unit stationed at Keogh Barracks in Mytchett, Surrey. Operating under 2 Medical Group, its primary mission is to deploy and operate a full-scale Role 3 Field Hospital—essentially a high-tech, tented medical facility capable of delivering advanced diagnostics, emergency surgery, intensive care, and ward recovery in austere environments. The unit is designed to hold the "Vanguard" readiness posture, meaning it can deploy rapidly worldwide to support combat operations or humanitarian crises, as it did during the Ebola crisis in Sierra Leone. While its permanent staff manages the complex logistics, power, and infrastructure of the hospital, on deployment it is significantly augmented by clinical specialists (such as trauma surgeons and anaesthetists) drawn from across the Defence Medical Services.
