The Ministry of Defence is a ministerial department of the Government of the United Kingdom. It is responsible for implementing the defence policy set by the government and serves as the headquarters
MoD Main Building, Westminster
Air Chief Marshal Sir Rich Knighton, Chief of the Defence Staff since September 2025
Defence chiefs at the Coronation of Charles III in 2023
A British armed forces careers office in Oxford
Chief of the Defence Staff is the title of the professional head of the British Armed Forces and the most senior uniformed military adviser to the Secretary of State for Defence and the prime minister
Air Vice Marshal Dickson near Venafro, Italy
Lord Mountbatten Naval in colour Allan Warren
Sir Charles Elworthy