De Bouillé went into exile, first travelling to Pillnitz, where the spread of anti-Royalist sentiments was discussed by other European monarchs. Courted by royalty for positions in their armies, he sought to remain loyal to Louis, eventually serving as a military consultant to Prussian King Frederick William II in the early stages of the First Coalition. He joined military campaigns in 1793, and was urged to take command of Royalist forces in the Vendée, but refused, believing the forces would ultimately fail in their aims. Shortly after that, he sailed for England, where he continued to assist the British in military activities against Revolutionary France.