The 8th and 9th Battalions, the two Territorial Army (TA) units, were part of the 1st London Infantry Brigade, attached to 1st London Infantry Division. These later became the 167th (London) Infantry Brigade and 56th (London) Infantry Division. Both battalions saw service in the final stages of the Tunisia Campaign, where each suffered over 100 casualties in their first battle. In September 1943, both battalions were heavily involved in the landings at Salerno, as part of the Allied invasion of Italy, later crossing the Volturno Line, before, in December, being held up at the Winter Line. Both battalions then fought in the Battle of Monte Cassino and were sent to the Anzio beachhead in February 1944.