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
Economic Community of West African States Monitoring Group Economic Community of West African States Monitoring Group The Economic Community of West African States Monitoring Group (ECOMOG) was a West African multilateral armed force established by the Economic Community of West African States (ECOWAS). ECOMOG was a formal arrangement for separate armies to work together. It was largely supported by personnel and resources of the Nigerian Armed Forces, with sub-battalion strength units contributed by other ECOWAS members — Ghana, Guinea, Sierra Leone, The Gambia, Liberia, Mali, Burkina Faso, Niger, and others. Nigeria and other ECOWAS members agreed to a Protocol on Mutual Defence Assistance, in Freetown, Sierra Leone, on