 In September 1792, he was elected lieutenant colonel commanding the Lombards battalion, took part in the Argonne campaign then followed Durnouriez in Belgium.Temporary commandant in Brussels during the French occupation, he was one of the leaders of the popular society.When the Belgian Primary Assemblies were convened concerning the decision to attach Belgium to France, he went to Ghent the 22 February 1793 to assist the Commissioner Courtois.