In September 1793, he drove the troops of the Habsburg Monarchy and the Kingdom of Sardinia from Nice. He defeated Joseph De Vins' Austrians at city of Gilette. While a Deputy of the French Convention, Dugommier succeeded General Jean François Carteaux as commander of the army besieging Toulon. Recognizing that the attack plan of a young artillery major named Napoleon Bonaparte was the correct one, Dugommier carried it out. In December 1793, he brought the Siege of Toulon to a successful conclusion.