<prompt> Qedela umusho olandelayo: Ngo-March 1781 yahamba ngomkhumbi eya eWest Indies njengomkhumbi ohamba phambili wemikhumbi engu - 20 eyayingaphansi kuka - De Grasse. Khona-ke walwa e  <response>: Impi yaseFort Royal neMpi yaseChesapeake, ngaphansi kukaKaputeni Cresp de Saint-Césaire. 