Zulu Dawn

Zulu Dawn is a 1979 war film about the historical Battle of Isandlwana between British and Zulu forces in 1879 in South Africa. The screenplay was by Cy Endfield, from his book, and Anthony Storey. The film was directed by Douglas Hickox. The score was composed by Elmer Bernstein.

https://365movies.is/movies/happy-death-day-03222.html

Zulu Dawn is a prequel to Zulu, released in 1964, which depicts the historical Battle of Rorke's Drift later the same day, and was co-written and directed by Cy Endfield.
The film is set in British South Africa, in the province of Natal, in January 1879. The first act of the film revolves around the administrators and officials of Cape Colony, notably the supremely arrogant Lord Chelmsford and the scheming Sir Henry Bartle Frere, who both wish to crush the neighbouring Zulu Empire, which is perceived as a threat to Cape Colony's emerging industrial economy. Bartle Frere issues an impossible ultimatum to the Zulu king, Cetshwayo, demanding that he dissolve the Zulu Empire. Cetshwayo refuses, providing Cape Colony with a pretext to invade Zululand. Despite objections from leading members of Cape Colony's high society and from Great Britain itself, Bartle Frere authorises Lord Chelmsford to lead a British invasion force into Zululand.

https://365movies.is/movies/the-devils-candy-04032.html