James Carafano of the Heritage Foundation points out:

Webb quoted Eisenhower and his determination to end the Korean stalemate when he became president…except Eisenhower…1) encouraged commanders in the field to be aggressive, and they actually increased combat operations to put pressure on the Chinese and North Koreans and 2) even issued a veiled threat that he might use nuclear weapons. A very interesting article on this was written some time ago by a young army major at West Point named…Dave Patreaus (Petraeus, David H. ” Korea, the Never-Again Club, and Indochina.” Parameters: US Army War College Quarterly 17:4 (December 1987): 59-70.)