 Complete the following phrase:  56th Division was next tasked with capturing a bridgehead across the Garigliano using strong artillery support 400 rounds per gun were supplied for the divisions 25-pounders. The attack on the night of 1718 January 1944 was successful and by morning the leading battalions were across and attacking with plenty of artillery support. The division began its breakout from the bridgehead on 23 January, but at the end of the month was ordered to pull out and go by sea to reinforce the 