Gambia Armed Forces defence and security in The Gambia was the responsibility of the Field Force. The Field Force was a paramilitary unit of the police, consisting of roughly 140 men at independence and rising to around 500 in 1980. It has been formed in 1958 following the disbandment of the Gambia Regiment, part of the British Army. There was little concern about security in The Gambia due to its small size and the safety provided by being totally surrounded by Senegal, with which it had signed a mutual defence pact in 1965. This lax attitude to defence changed following the 1981 coup
Gambia Regiment brigade. Realising that the brigade had become surrounded, Roberts, the commander of the Gambian column, took control of the forces of 1 Battalion, Nigerian Regiment, which were in disarray. They formed a front against the German attack, with half of the Gambia Company spread among them, and the other half of the company sent to defend the Nigerian guns. The greatest intensity of the German attacks was on the force's right flank, with the half of the Gambia Company protecting the guns heavily outnumbered. After sustaining severe casualties, it was forced to retreat. Eventually, Roberts' force withdrew to Nahumpa Mission.