Gambia 101, via African Shirts:
“After the 1981 coup attempt, the confederation of Senegambia was established with Senegal. The union didn't last too long, but made a lot of sense. Gambia is the smallest country in Africa, a tiny strip of land around the River Gambia less than 50km wide. It is surrounded on all sides by Senegal, except in the west, where the River Gambia opens out into the Atlantic. Basically, they Gambia is almost like an autonomous part of the Senegal which speaks English.”