A Ugandan , John Gideon Okello led the Zanzibar Revolution in 1964

John Gideon Okello (1937–1971) was a Ugandan revolutionary and the leader of the Zanzibar Revolution in 1964. This revolution overthrew Sultan Jamshid bin Abdullah and led to the proclamation of Zanzibar as a republic.[1]

https://www.youtube.com/watch?v=IE24qenucRY

https://www.youtube.com/watch?v=6rX5MHdXW7E

Link :
https://en.m.wikipedia.org/wiki/Zanzibar_Revolution

Okello himself led the attack on the Ziwani police HQ, which also happened to be the largest armory on the island.[23] Several of the rebels were shot down, but the police were overwhelmed by sheer numbers, with Okello impressing his men with his courage by personally attacking a police sentry and having wrestled his rifle from him, used it to bayonet the policeman to death.[23]

Arming themselves with hundreds of captured automatic rifles, submachine guns and Bren guns, the insurgents took control of strategic buildings in the capital, Zanzibar Town.[25][26] At about 7:00 am, Okello made his first radio broadcast from a local radio station his followers had captured two hours earlier, calling upon the Africans to rise up and overthrow the “imperialists”.[27]

At the time, Okello only referred to himself as “the field marshal”, which prompted much speculation on Zanzibar about just who was this mysterious figure leading the revolution who spoke his Swahili with a thick Acholi accent, which sounded very strange on Zanzibar.[27]

Another thread on this topic from huko 2017…

https://www.kenyatalk.com/index.php?threads/zanzibar-revolution-the-biggest-massacre-in-east-african-history.48606/