 Complete the following phrase:  In February 1941, El Agheila was taken by the British Western Desert Force following their destruction of the Italian Tenth Army in Operation Compass. The British halted there while most of the Western Desert Force was moved to deal with the Axiss invasion of Greece. This gave the German Afrika Korps under Erwin Rommel a chance to arrive and launch an offensive which retook El Agheila in March and drove the British all the way back to Tobruk and the Egyptian frontier. Rommel would further fortify the city and use it as a 