Fitzhugh Lee was one of four ex-Confederate general officers who were made major generals of United States Volunteers (the others being Matthew Butler, Joseph Wheeler and Thomas L. Rosser). Fitzhugh Lee commanded the 7th Army Corps, but took no part in the actual operations in Cuba. He was military governor of Havana and Pinar del Río in 1899, subsequently commanded the Department of the Missouri, and retired in 1901 as a brigadier general, U.S. Army.[4]
https://en.wikipedia.org/wiki/Fitzhugh_Lee