 Complete the following phrase:  In September 1942, it began transferring to the positions in North Africa at the border with Egypt, finally taking responsibility for the Bardia-Sallum-Naqb al Halfayah defensive line. It failed to hold the positions after the severe British attack, starting 11 November 1942. After a long retreat, it was able to re-establish the defensive line at Mareth, from 4 February 1943. On 6 March 1943, the Pistoia division attacked the British positions en masse with the goal of disrupting British offensive preparations and trigger a premature counter-offensive, as part of the 