The July Revolution and the Return of the National Guard

French nationalism had been unleashed by the revolution and then was forced into unhappy hibernation by the restored bourbons. With louis philippe embracing the tricolor, that went a long way towards papering over any internal divisions amongst the opposition members. The british were not thrilled at the idea of recognizing orleans, but they had also not been thrilled with charles's conduct. So when wor came that the bourbons had been overthrown, they were like, well, ok, it's not like they didn't know orleans. They could work with him.