Royal Observer Corps was created in 1925.
Royal Observer Corps Medal was created in 1950.
Royal Observer Corps ended in 1995.
The motto of Royal Observer Corps is 'Forewarned is Forearmed'.
Royal Logistic Corps was created in 1993.
Royal Pioneer Corps was created in 1939.
Royal Armoured Corps was created in 1939.
Royal Defence Corps was created in 1917.
Royal Corps of Transport was created in 1965.
Royal Flying Corps was created in 1912.
Royal Corps of Signals was created in 1920.
Royal Canadian Postal Corps was created in 1914.
Royal Australian Corps of Signals was created in 1906.