The grenadiers of the 1st Battalion, now in the "Armée des Ardennes", took part in on 23 May during the Battle of Hamptinne, Battle of Florenne, and Battle of Saint-Aubin. After the retreat of the Prussians, the whole of the 1st Battalion passed to the Army of the North "Armée du Nord" and contributed to the decisive Siege of Lille. It then served during the Flanders campaign and the Battle of Neerwinden. In April 1793, the regiment entered the garrison at Condé-sur-l'Escaut, where it was captured following the Siege of Condé on 13 July. The regiment was eventually exchanged in 1795, where it then joined the Home Army "Armée du Home" where the discussion of a new constitution began in Paris leading to insurrection. Under the new constitution, all royalist lineages and attachments were lost, though the 1st Battalion was able to escape being amalgamated as the regiment's supposed successor, 11éme Demi-Brigade, only existed on paper.