On 8 October 1803, the French abandoned Port-au-Prince as Rochambeau decided to concentrate what was left of his army at Le Cap. Dessalines marched into Port-au-Prince, where he was welcomed as a hero by the 100 whites who had chosen to stay behind. Dessalines thanked them all for their kindness and belief in racial equality, but then he said that the French had treated him as less than human when he was a slave, and so to avenge his mistreatment, he promptly had the 100 whites all hanged. On 3 November, the frigate HMS "Blanche" captured a supply schooner near Cap Français, the last hope in supplying the French forces. On 16 November 1803, Dessalines began attacking the French blockhouses outside of Le Cap. The last battle on land of the Haitian Revolution, the Battle of Vertières, occurred on 18 November 1803, near Cap-Haïtien fought between Dessalines' army and the remaining French colonial army under the Vicomte de Rochambeau; the slave rebels and freed revolutionary soldiers won the battle. By this point, Perry observed that both sides were "a little mad" as the pressures of the war and yellow fever had taken their toil, and both the French and the Haitians fought with a reckless courage, seeing death in battle as preferable to a slow death by yellow fever or being tortured to death by the enemy.