Port Louis in the context of "Isle de France (Mauritius)"

Mauritius, officially the Republic of Mauritius, is an island country in the Indian Ocean, about 2,000 kilometres (1,100 nautical miles) off the southeastern coast of East Africa, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Agaléga, St. Brandon (Cargados Carajos shoals) and the Chagos Archipelagos. The islands of Mauritius and Rodrigues, along with nearby Réunion (a French overseas department), are part of the Mascarene Islands. The main island of Mauritius, where the population is concentrated, hosts the capital and largest city, Port Louis. The country spans 2,040 square kilometres (790 sq mi) and has an exclusive economic zone covering approximately 2,000,000 square kilometres (580,000 square nautical miles).

The 1502 Portuguese Cantino planisphere has led some historians to speculate that Arab sailors were the first to discover the uninhabited island around 975, naming it Dina Arobi. Called Ilha do Cirne or Ilha do Cerne on early Portuguese maps, the island was visited by Portuguese sailors in 1507. A Dutch fleet, under the command of Admiral Van Warwyck, landed at what is now the Grand Port District and took possession of the island in 1598, renaming it after Maurice, Prince of Orange. Short-lived Dutch attempts at permanent settlement took place over a century aimed at exploiting the local ebony forests, establishing sugar and arrack production using cane plant cuttings from Java together with over three hundred Malagasy slaves, all in vain. When French colonisation began in 1715, the island was renamed "Isle de France". In 1810, the United Kingdom seized the island and under the Treaty of Paris, France ceded Mauritius and its dependencies to the United Kingdom. The British colony of Mauritius now included Rodrigues, Agaléga, St. Brandon, the Chagos Archipelago, and, until 1906, the Seychelles. Mauritius and France dispute sovereignty over the island of Tromelin, the treaty failing to mention it specifically. Mauritius became the British Empire's main sugar-producing colony and remained a primarily sugar-dominated plantation-based colony until independence, in 1968. In 1992, the country abolished the monarchy, replacing it with the president.

The invasion of Isle de France was a complicated but successful British amphibious operation in the Indian Ocean, launched in November 1810 during the Napoleonic Wars. During the operation, a substantial military force was landed by the Royal Navy at Grand Baie, on the French colony of Isle de France (now Mauritius). Marching inland against weak French opposition, the British force was able to overwhelm the defenders in a series of minor engagements, culminating in the capture of the island's capital Port Napoleon and the surrender of Governor Charles Mathieu Isidore Decaen. The surrender eliminated the last French territory in the Indian Ocean and among the military equipment captured were five French Imperial Navy frigates and 209 heavy cannon. Isle de France was retained by Britain at the end of the war under the name of Mauritius and remained part of the British Empire until 1968.

The operation was the culmination of two years of conflict over the island and the neighbouring Isle Bourbon between frigate squadrons commanded by Josias Rowley and Jacques Hamelin. Hamelin repeatedly raided British trade convoys and Rowley responded with amphibious assaults on French harbours, but neither had gained ascendancy by the time Rowley sent most of his force to attack the port of Grand Port on Isle de France in August 1810. At the ensuing battle at Grand Port the British squadron was destroyed and Hamelin began to blockade Rowley on Isle Bourbon. As British reinforcements were urgently dispatched, several actions were fought between recently arrived British ships and the more numerous French forces. At the last of these on 18 September, Hamelin was defeated and captured by Rowley. This allowed Rowley to build his forces over the next two months until they were sufficient for a successful invasion, which was led by the recently arrived Admiral Albemarle Bertie.

The Battle of Grand Port was a naval battle fought on 20–27 August 1810 between squadrons of frigates from the French Navy and the British Royal Navy over possession of the harbour of Grand Port on Isle de France (now Mauritius), as part of the Mauritius campaign during the Napoleonic Wars. A British squadron of four frigates sought to blockade the port to prevent its use by the French through the capture of the fortified Île de la Passe at its entrance. This position was seized by a British landing party on 13 August and, when a French squadron under Captain Guy-Victor Duperré approached the bay nine days later, the British commander, Captain Samuel Pym, decided to lure them into coastal waters where his forces could ambush them.

Four of the five French ships managed to break past the British blockade, taking shelter in the protected anchorage, which was only accessible through a series of complicated routes between reefs and sandbanks that were impassable without an experienced harbour pilot. When Pym ordered his frigates to attack the anchored French on 22 and 23 August, his ships became trapped in the narrow channels of the bay: two were irretrievably grounded; a third, outnumbered by the combined French squadron, was defeated; and a fourth was unable to close to within effective gun range. Although the French ships were also badly damaged, the battle was a disaster for the British: one ship was captured after suffering irreparable damage, the grounded ships were set on fire to prevent their capture by French boarding parties, and the remaining vessel was seized as it left the harbour by the main French squadron from Port Napoleon under Commodore Jacques Hamelin.