The British Army agreed to provide a unit to train government forces and carry out foot and vehicle mounted patrols designed to ensure the security of areas where training bases were located. In August, this unit was based on the Royal Irish Regiment. On 25 August, a 12-man vehicle patrol in the Occra Hills was ambushed and forced to surrender by an armed rebel group known as the West Side Boys. Negotiations led to the release of six of the men. The remainder were rescued during Operation Barras by a combined team from one Company of the 1st Battalion and the SAS.