Guadeloupe (; French: [wad()lup] (listen); Antillean Creole: Gwadloup, [wadlup]) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islandsBasse-Terre, Grande-Terre, Marie-Galante, La Dsirade, and the two inhabited les des Saintesas well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat, north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe--Pitre, both located on Grande-Terre Island.Like the other overseas departments, it is an integral part of France. As a constituent territory of the European Union and the Eurozone, the euro is its official currency and any European Union citizen is free to settle and work there indefinitely. However, as an overseas department, it is not part of the Schengen Area. The region formerly included Saint Barthlemy and Saint Martin, which were detached from Guadeloupe in 2007 following a 2003 referendum.

Christopher Columbus, who was the first European to see Guadeloupe, where he landed in 1493, gave the island its name. The official language is French; Antillean Creole is also spoken.

The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service.

From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to refer to it as "the Royal Navy" without qualification. Following World War I, it was significantly reduced in size, although at the onset of World War II it was still the world's largest. During the Cold War, the Royal Navy transformed into a primarily anti-submarine force, hunting for Soviet submarines and mostly active in the GIUK gap. Following the collapse of the Soviet Union, its focus has returned to expeditionary operations around the world and it remains one of the world's foremost blue-water navies.The Royal Navy maintains a fleet of technologically sophisticated ships, submarines, and aircraft, including 2 aircraft carriers, 2 amphibious transport docks, 4 ballistic missile submarines (which maintain the nuclear deterrent), 6 nuclear fleet submarines, 6 guided missile destroyers, 12 frigates, 11 mine-countermeasure vessels and 26 patrol vessels. As of August 2021, there are 75 operational commissioned ships (including submarines as well as one historic ship, HMS Victory) in the Royal Navy, plus 11 ships of the Royal Fleet Auxiliary (RFA); there are also five Merchant Navy ships available to the RFA under a private finance initiative. The RFA replenishes Royal Navy warships at sea, and augments the Royal Navy's amphibious warfare capabilities through its three Bay-class landing ship vessels. It also works as a force multiplier for the Royal Navy, often doing patrols that frigates used to do.

The Royal Navy is part of Her Majesty's Naval Service, which also includes the Royal Marines. The professional head of 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.