the treaty of La Mabilais. Hoche thought that Cormatin was trying to outsmart him. Cormatin was imprisoned and would not be freed before 1802. Boishardy, who did not sign, was killed during the night of 17 to 18 June between Bréhand and Moncontour. Likewise, de Silz, who had taken up arms again, was attacked on 28 June at Grand-Champ by the troops of Adjutant-General Josnet. De Silz was killed in action, and his men retreated. On 23 June 1795, a British fleet led by Commodore John Borlase Warren, landed soldiers of the émigré army in Carnac. They joined Chouans led by Vincent de Tinténiac, and Jacques Anne Joseph Le Prestre de Vauban, the great-grandnephew of Marshal Sébastien Le Prestre de Vauban. However, disagreements between the general of the émigrés Louis Charles d'Hervilly and the expedition leader Puisaye cost the Royalists precious time. A counterattack by Hoche forced the Chouans back to the Quiberon peninsula. On 10 July, two columns of Chouan troops wearing English uniforms embarked on British ships from the peninsula and were landed behind Republican lines. However, the men from the first column, led by Lantivy du Rest and , scattered. The second column, led by Vincent de Tinténiac and seconded by Georges Cadoudal, prepared to attack but received a message from the Agence royaliste de Paris requiring them to join a second British landing at Côtes-d'Armor. Tinténiac hesitated in the face of opposition from Cadoudal but obeyed the order. He was killed on his way there at Coëtlogon on 18 July. They reached the bay of Saint-Brieuc, but since British fleet had joined them, they returned to the Morbihan and appointed Cadoudal as their general. Meanwhile, in Quiberon, reinforcements of men led by Charles de Virot de Sombreuil joined the émigrés. They attempted to attack on 16 July, but were crushed. Hoche launched a final assault on 20 July and routed the émigrés. Louis Charles d'Hervilly was fatally wounded, and Puisaye managed to board a British ship. The Republicans took more than prisoners. 748 of them were shot by firing squad, including Sombreuil. The day before his execution, he wrote a letter to Commodore Warren denouncing the flight of the Chief General, Joseph de Puisaye. That letter had an enormous impact on the Chouans. A council of officers in Morbihan sentenced Puisaye to death in absentia. He returned to Brittany in autumn 1795, where he was arrested