The Gambia (the i/ˈɡæmbiə/; officially the Republic of the Gambia), also commonly known as Gambia, is a country in West Africa. It is surrounded by Senegal, apart from a short strip of Atlantic coastline at its western end. It is the smallest country on mainland Africa.
The country is situated either side of the Gambia River, the nation's namesake, which flows through the country's centre and empties into the Atlantic Ocean. Its area is 11,295 km² with an estimated population of 1.7 million.
On 18 February 1965, the Gambia gained independence from the United Kingdom and joined the Commonwealth of Nations. Banjul is the Gambian capital, but the largest cities are Serekunda and Brikama.