By mid-December 1940, the focus had shifted to Bardia

The RAF flew 150 sorties against Bardia from December 14th to 19th. In conjunction, Wellingtons from Malta operated against Italian airfields in Libya. They destroyed some 44 aircraft. The 16th Infantry Brigade moved up to the southern side of Bardia while the 16th Australian Brigade moved to the southwest side. The 7th Armoured Division moved to block any relief efforts from Tobruk. Meanwhile, supply depots were set up. One line was along the coastal road while another followed the line of the escarpment. The transport received reinforcements from captured Italian trucks. Meanwhile, Sollum fell to the British on Decmeber 16th. This was convenient because it provided a small seaport close to the front.