I want to know the answer to the following question:
Who was the Sixth US Army Group's commander?
All the background I'm provided with is that "Field Marshal Montgomery insisted priority be given to his 21st Army Group's attack being made in the north, while Generals Bradley (12th U.S. Army Group) and Devers (Sixth U.S. Army Group) insisted they be given priority in the center and south of the front (respectively).". Is that enough to answer the question?
Answer: yes