The following March, 168th (London) Infantry Brigade (comprising 1st London Irish Rifles, 1st London Scottish and 10th Royal Berkshire Regiment) and supporting units, including the 90th Field Regiment, was detached from the 56th Division and sent overland to Egypt to join 50th (Northumbrian) Infantry Division, which had suffered heavy casualties in North Africa (including a whole brigade at Gazala), in particular during the Battle of Gazala the year before, and had been withdrawn from the Tunisia Campaign to prepare and train in amphibious warfare for the landings in Sicily (Operation Husky).