 Complete the following phrase:  The 4th Battalion was a 1st Line Territorial Army unit, originally assigned to the 126th Infantry Brigade, 42nd East Lancashire Infantry Division. However, the battalion left the brigade in November 1939, and was assigned to the newly raised 25th Infantry Brigade and served from 193940 in France on lines of communication duties before becoming part of the ill-fated 2nd BEF that tried to maintain a presence in France after Dunkirk, finally leaving from the Cherbourg peninsular. After returning to the United Kingdom, it spent time in South Wales on Guard duties before being posted to North Africa in 1941. The battalion was then assigned to the 23rd Infantry Brigade, part of the 70th Infantry Division. Whilst in Africa, it spent some time fighting the Africa Korps, including taking part in the 