an Entity references as follows:
The Air Defence Research and Development Establishment (ADRDE) was a civilian research organization run by the War Office that primarily studied the development of radar for British Army use. It was formed in 1941 from the merger of the Air Defence Experimental Establishment in Christchurch, Dorset and the "Army Cell" that had previously worked on radar design within the Air Ministry's Telecommunications Research Establishment at Bawdsey Manor.