 FVRDE and the Military Experimental Engineering Establishment (MEXE) at Christchurch amalgamated in 1970 to form the Military Vehicles and Engineering Establishment (MVEE).In 1984-5 Chertsey became the Vehicles Department of the Royal Armament Research and Development Establishment (RARDE) as the MVEE and the Propellants, Explosives and Rocket Motor Establishment (PERME) based at Waltham Abbey and Westcott, merged with RARDE Fort Halstead.In the wake of the ending of the Cold War, RARDE merged with other research establishments in April 1991 to form the Defence Research Agency (DRA), an executive Agency of the Ministry of Defence.