Admiralty
It evolved from *Admiralty Navy War Council, (1909–1912) which in turn became the Admiralty War Staff, (1912–1917) before finally becoming the Admiralty Naval Staff in 1917. It was the former senior command, operational planning, policy and strategy department within the British Admiralty. It was established in 1917 and existed until 1964 when the department of the Admiralty was abolished, and the staff departments function continued within the Navy Department of the Ministry of Defence until 1971 when its functions became part of the new Naval Staff, Navy Department of the Ministry of Defence.
Commander-in-Chief, North Sea
The North Sea has traditionally been an important command from the 13th to 15th centuries there was an Admiral of the North based at Yarmouth that office ceased when it was unified with the new office of Admiral of England. During the 16th and 17th centuries Vice Admirals were appointed to the command of the North Sea though on an intermittent basis. From 1652-1654 Yarmouth used by the Royal Navy for stationing its fleets during the First Anglo-Dutch War. A more permanent command was then established in 1781 with the fleet usually anchored at Yarmouth Roads. The fleet is most well known for its key role in the Battle of Camperdown against the Dutch Navy on the 11 October 1797 which resulted in a decisive British victory. The fleet was also involved in trade protection with the advent of the looming Napoleonic Wars and later it turned to the blockading of enemy ports. The fleet also played an instrumental part in the British anti-invasion preparations of 1803–05 in response to Napoleon's planned invasion of the United Kingdom. It ceased as a separate command in 1815 when it was absorbed into the Nore Command whose role and geographic area of responsibility was re-defined by the Admiralty.