the Naval Service is the First Sea Lord who is an admiral and member of the Defence Council of the United Kingdom. The Defence Council delegates management of the Naval Service to the Admiralty Board, chaired by the Secretary of State for Defence. The Royal Navy operates from three bases in Britain where commissioned ships and submarines are based: Portsmouth, Clyde and Devonport, the last being the largest operational naval base in Western Europe, as well as two naval air stations, RNAS Yeovilton and RNAS Culdrose where maritime aircraft are based. Role As the seaborne branch of HM Armed Forces, the RN has various roles. As it stands today, the RN has stated its six major roles as detailed below in umbrella terms. Preventing Conflict – On a global and regional level Providing Security At Sea – To ensure the stability of international trade at sea International Partnerships – To help cement the relationship with the United Kingdom's allies (such as NATO) Maintaining a Readiness To Fight – To protect the United Kingdom's interests across the globe Protecting the Economy – To safeguard vital trade routes to guarantee the United Kingdom's and its allies' economic prosperity at sea Providing Humanitarian Aid – To deliver a fast and effective response to global catastrophes History The English Royal Navy was formally founded in 1546 by Henry VIII though the Kingdom of England had possessed less-organised naval forces for centuries prior to this. The Royal Scots Navy (or Old Scots Navy) had its origins in the Middle Ages until its merger with the English Royal Navy per the Acts of Union 1707. Earlier fleets During much of the medieval period, fleets or "king's ships" were often established or gathered for specific campaigns or actions, and these would disperse afterwards. These were generally merchant ships enlisted into service. Unlike some European states, England did not maintain a small permanent core of warships in peacetime. England's naval organisation was haphazard and the mobilization of fleets when war broke out was slow. Control of the sea only became critical to Anglo-Saxon kings in the 10th century. In the 11th century, Aethelred II had an especially large fleet built by a national levy. During the period of Danish rule in the 11th century, the authorities maintained a standing fleet by taxation, and this continued for a time under Edward the Confessor, who frequently commanded fleets in person.