In the first stage, the British would advance in a three-prong assault to clear the frontier region. Along the coast was Coast Force and inland was Escarpment Force. The former was responsible for capturing Halfaya Pass, while the latter was to capture the remainder of the frontier at Fort Capuzzo, Musaid and Sollum. The 7th Armoured Brigade Group and the artillery of the Support Group were to engage and destroy the German tanks, which were thought to be at Hafid Ridge. This would also trap Axis units on the frontier between themselves and the remainder of the British forces. After capturing the frontier, the brigades of the 7th Armoured Division would reform and continue north to relieve Tobruk. Once joined by the Tobruk garrison, the combined forces would press on to the west, driving the Germans as far back as possible.