He served in the
American Revolutionary War as an
aide-de-camp to his father, spending the winter of 1781–1782 in quarters at Williamsburg, Virginia. In the 1790s, he participated in an unsuccessful campaign to re-establish French authority in
Martinique and
Saint-Domingue. Rochambeau was later assigned to the
French Revolutionary Army in the
Italian Peninsula, and was appointed to the military command of the
Ligurian Republic. In 1802, he was appointed to lead an
expeditionary force against
Saint-Domingue (
Haiti) after General
Charles Leclerc's death. His remit was to restore French control of their rebellious colony, by any means. Historians of the
Haitian Revolution credit his brutal tactics for uniting
black and
gens de couleur soldiers against the French. After Rochambeau surrendered to the rebel general
Jean-Jacques Dessalines in November 1803, the former French colony declared its independence as
Haïti, the first independent black republic and second independent state in the
Americas. In the process, Dessalines became arguably the most successful military commander in the struggle against Napoleonic France. During his time in Haiti, Rochambeau waged a war of extermination, massacring thousands of blacks of all ages and genders. Though the largest massacres of black men and women took place under Leclerc's leadership, Rochambeau was notable for the brutality of his methods of execution; historians generally accept accounts of blacks being burned at the stake and fed to dogs in makeshift arenas, while some disputed accounts also mention crucifixion. At the
surrender of Cap Français, Rochambeau was captured aboard the frigate
Surveillante by a
Royal Navy squadron under the command of
Captain John Loring and returned to England as a prisoner on
parole, where he remained interned for almost nine years. He was exchanged in 1811, and returned to the family
château, where he resumed the work of classifying the family's growing collection of maps, which his father had begun. He also enriched the collections with new acquisitions, in particular ones contributed by the military campaigns of his son,
Auguste-Philippe Donatien de Vimeur, who served as the aide-de-camp for
Joachim Murat and was with Murat's cavalry in the
Russian campaign in 1812. He was mortally wounded in the
Battle of Nations, and died three days later at
Leipzig, at the age of 58. ==Motto and coat of arms==