As Commander of the National Guard, again he might have made himself dictator. Instead he was pleading with the Assembly to adopt the preamble of the American Constitution as the foundation of its declaration of rights. When alien armies were brought to France to crush her liberties he was put at the head of the Army of the North, but treachery and suspicion overcame him. He was retired from his command and was seeking to leave the country when he was captured and held for five years in imprisonment. Tradition has it that he was released through the joint efforts of Washington and Napoleon.