The Gambia less than wide at its widest point, with a total area of . About (11.5%) of the Gambia's area are covered by water. It is the smallest country on the African mainland. In comparative terms, the Gambia has a total area slightly less than that of the island of Jamaica. Senegal surrounds the Gambia on three sides, with of coastline on the Atlantic Ocean marking its western extremity. The present boundaries were defined in 1889 after an agreement between the United Kingdom and France. During the negotiations between the French and the British in Paris, the French initially gave the
Gambia Regiment 81st (West Africa) Division during its operations in WWII. Throughout 1900 and 1901, the Gambia had experienced an insurgency against British colonial rule, which was eventually suppressed by a military expedition, known as the Gambia Field Force, under Lieutenant Colonel H. E. Brake. It consisted of soldiers from the West India Regiment and the Central Africa Regiment. With the West African Frontier Force (WAFF) being founded in 1898, the Colonial Office made the decision to raise a company in The Gambia, initially to be part of the Sierra Leone Battalion. Captain F. O. Graham of the Royal Marines oversaw its