During the Hundred Days, Napoleon reconstituted the corps and appointed Mouton as its commander. The corps arrived in the evening after the Battle of Ligny on 16 June 1815 and camped close to the Prussian outposts. The next day, Napoleon ordered Mouton to march his corps west to a position where it could attack Wellington's British army and attached General Subervie's light cavalry division. At the same time, General Teste's division was detached from the corps to operate with Marshal Emmanuel de Grouchy's right wing.