Source data found1. WWW Ministry of Defense, 29/05/2018 https://www.gov.uk/government/organisations/ministry-of-defence
2. WWW MOD, 19/04/2021 MOD is a fusion of old ministries: from 1946 to 1964 there were five Departments of State doing what the unified MOD does now: the Admiralty, the War Office, the Air Ministry, the Ministry of Aviation and the Ministry of Defence itself. In 1964 the first three and the MOD were amalgamated, and the defence functions of the Ministry of Aviation Supply (as it had by then become) were absorbed in 1971, when the MOD took over responsibility for supplying military aircraft and guided weapons https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/49053/history_of_mod.pdf
3. WWW Wikipedia, 19/04/2021 El Ministerio de Defensa (Ministry of Defence, acrónimo MOD o MoD) es el departamento del gobierno británico responsable de la ejecución de la política de defensa establecida por el Gobierno de Reino Unido, y es sede de las Fuerzas Armadas de Reino Unido https://es.wikipedia.org/w/index.php?title=Ministerio_de_Defensa_(Reino_Unido)&oldid=132131688
4. Ministry of Defence, 1990
5. WWW BnF aut., 29/05/2018 Great Britain. Ministry of Defense
6. WWW LC auth., 19/04/2021 Great Britain. War Office