 Complete the following phrase:  Hardy was born on 19 May 1762 in Mouzon, a village that is now in the Ardennes department of France. He enlisted in an infantry unit at age 21. At the time of the French Revolution, he was a fourrier in the Royal-Monsieur Regiment with the brevet rank of sous-officer. He joined the Epernay Volunteers and fought at the Battle of Valmy on 20 September 1792, earning promotion to Chef de bataillon major. He became the commander of the 7th Battalion of the Marne Volunteers, leading his unit at the 