what does the 5 stand for in mi5
MI5 The Security Service, also MI5 (Military Intelligence, Section 5),[3] is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ) and Defence Intelligence (DI). MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989. The service is directed to protect British parliamentary democracy and economic interests, and counter terrorism and espionage within the UK.
Five-star rank Five-star ranks were created in the US military during World War II because of the awkward situation created when some American senior commanders were placed in positions commanding allied officers of higher rank.[8] US officers holding five-star rank never retire; they draw full active duty pay for life.[9] The five-star ranks were retired in 1981 on the death of General of the Army Omar Bradley.[8]