 During the retreat to Dunkirk, several of the battalion's men became separated and temporarily joined the 138th Infantry Brigade (of 46th Division) during the final fighting in France.At least 6 men from 'D' Company were killed in the Wormhoudt massacre, alongside other men from the 2nd Royal Warwickshire Regiment and 4th Cheshire Regiment, and men from the Royal Artillery.The battalion remained with the 144th Brigade, until it was transferred to the 211th Infantry Brigade in July 1944.