 Complete the following phrase:  The following spring, Marmont led the VI Corps during the Six Days Campaign. At the Battle of Champaubert on 10 February 1814, they destroyed an understrength Russian corps and captured its commander. Marmont was left to observe part of Blüchers army while Napoleon fell upon the rest. While Marmont capably held off Blüchers advance, Napoleon concentrated his forces behind him. At the 