Companies B and D were attached to the 116th Infantry Regiment, which was itself attached to the 75th Infantry Division as part of the plan to encircle the Ruhr Pocket. By 4 April 1945, they had crossed the Dortmund-Ems Canal and reached . On 6 April the tankers took up defensive positions south of the Lippe River at Lünen. The following day Companies B and D returned to battalion control when the 116th Infantry Regiment was released from the 75th Infantry Division.