Disbandment
The bulk of the Imperial Guard was amongst the army led by Marshal Francois Bazaine, which was obliged to capitulate at Metz on 27 October 1870. The Guard was formally abolished by the new French Republican Government, following the fall of the Empire. The 23 depot companies of the infantry of the Imperial Guard were brought together to form the 28th regiment de march which fought with distinction during the siege of Paris and subsequently became the 128th Regiment of the Line of the new French Army.
Read more about this topic: Imperial Guard (Napoleon III)