How did the Ancien Regimes of Europe react to Louis Napoleon's rise to power and then ascension as Napoleon III ?

by Arcvalons

Were there any fears that he would go in a conquering spree like his uncle? Were preparations made just in case?

DonaldFDraper

Just a point of correction, he Ancien Regime refers to the nobility and government of France before the Revolution. It isn't used to describe any other nobility other than France.