Complex sentence: The brigade HQ is based in Colchester Garrison and is under the operational command of the tri-service Joint Helicopter Command (JHC) and is assigned to the British-led Allied Rapid Reaction Corps of NATO as Corps Troops.
Split into simpler sentences: The brigade HQ is based in Colchester Garrison and is under the operational command of the tri-service Joint Helicopter Command (JHC). It is assigned to the British-led Allied Rapid Reaction Corps of NATO as Corps Troops.