It crossed the Nied River on 11–12 November, against strong opposition, reaching the German border on 6 December, and established and maintained defensive positions in the vicinity of Saarbrücken.

On 23 December, the division was ordered north of Metz to take part in the Battle of the Bulge, and took over a sector along the south bank of the Sauer.

The 6th was heavily engaged in the battle for Bastogne, finally driving the enemy back across the Our River into Germany by late January 1945.

After a short period of rehabilitation, the division resumed the offensive, penetrated the Siegfried Line, crossed the Prum, reached the Rhine River at Worms on 21 March, and set up a counterreconnaissance screen along its west bank.

After repulsing a light counterattack, it moved forward 60 miles to cross the Saale River and assisted in freeing Allied prisoners of war and the German concentration camp at Buchenwald.

The division raced on, took Leipzig, crossed the River Zwickau Mulde at Rochlitz on 15 April 1945, and stopped, pending the arrival of the Red Army.