Defence Council of the United Kingdom

The Defence Council of the United Kingdom is the highest formal governing body of the British Armed Forces, the Defence Council is delegated the responsibility and powers over "command and administration" of the armed forces, by the Crown in their capacity as Head of the Armed Forces. It was established by the "Defence (Transfer of Functions) Act 1964," which established the Defence Council and transferred to it the responsibilities and delegated powers of the previous separate departments that managed the armed forces prior to 1964.

Source: Wikipedia — Defence Council of the United Kingdom (CC BY-SA 4.0)