 The groups continued to support ground forces, participated in the assault against the Siegfried Line, and took part in the Battle of the Bulge (December 1944 – January 1945) by attacking rail lines and trains, marshalling yards, roads and vehicles, armored columns, and gun positions, operating with the Allied forces that pushed across the Rhine and into Germany.After V-E Day, the groups served with the Army of Occupation, being assigned to United States Air Forces in Europe before being inactivated in Germany on 20 August 1946.The wartime 368th Fighter Group was re-designated as the 136th Fighter Group and was allotted to the Texas Air National Guard on 21 August 1946.