What is the time period after Britain defeated Napoleon ?
After the loss of Spain , reconquered by an allied army led by Wellington , the rising in the Netherlands preliminary to the invasion and the manifesto of Frankfort ( 1 December 1813 ) which proclaimed it , he had to fall back upon the frontiers of 1795 ; and then later was driven yet farther back upon those of 1792 — despite the campaign of 1814 against the invaders .