The Oman–Zanzibar war (; ) was a 1784 conflict between the Omani Empire and Zanzibar.Price, E. D. Hazell's Annual Cyclopedia 1886 [-1891] ... 1st ed., London, 1888,. It was the first time they had fought since 1779. Zanzibar, a colony of Oman, rebelled with the support of African forces from Mombasa and Pemba Island.Pearce, France Barrow. Zanzibar. The Island Metropolis Of Eastern Africa. 1st ed., London, Cass, 1967,. Oman had to retake Zanzibar by force, capturing it in a short war. The Omani force was dispatched by Hilal bin Ahmad, eldest son of Sultan Ahmad bin Said al-Busaidi.
References A History of the African People. Robert William July (1998) Historical atlas of Oman Michael Isaac (2004)