 Complete the following phrase:  In May 1944 the 1st Battalion received large numbers of replacements from retrained anti-aircraft gunners of the Royal Artillery and became an effective infantry battalion again. The battalion was now assigned to 168th London Infantry Brigade, replacing the now disbanded 10th Royal Berkshire Regiment and serving alongside 1st London Irish Rifles and 1st London Scottish, making the brigade a mixture of Irish, Scottish and Welsh. The 168th Brigade was part of the 56th London Division, which had just been severely mauled 