Context: From 1946 to 1964 five Departments of State did the work of the modern Ministry of Defence: the Admiralty, the War Office, the Air Ministry, the Ministry of Aviation, and an earlier form of the Ministry of Defence. These departments merged in 1964; the defence functions of the Ministry of Aviation Supply merged into the Ministry of Defence in 1971.

Question: During what years did the five Departments of State do the work of the modern Ministry of Defence?
Answer: 1946 to 1964

Question: What were the five Departments of State that did the work of the modern Ministry of Defence?
Answer: the Admiralty, the War Office, the Air Ministry, the Ministry of Aviation, and an earlier form of the Ministry of Defence

Question: When did the defence functions of the Ministry of Aviation Supply merge into the Ministry of Defence?
Answer: 1971

Question: All former Departments of State (except the Ministry of Aviation Supply) merged in what year?
Answer: 1964

Question: What work was done by the War Office in 1971?
Answer: Unanswerable

Question: What five defence functions merged together in 1971?
Answer: Unanswerable

Question: What did the Ministry of Aviation Supply do from 1946 to 1964?
Answer: Unanswerable

Question: What did the defence functions of the Ministry of Aviation Supply merge into in 1964?
Answer: Unanswerable

Question: What happened to the War Office in 1971?
Answer: Unanswerable