This recommendation comes from Karena Fagan. You can follow her on Tumblr and on twitter @KarenaFagan.
Half of a Yellow Sun (2006) by Chimamanda Ngozi Adichie
"Chimamanda Ngozi Adichie illuminates a seminal moment in modern African
history: Biafra's impassioned struggle to establish an independent
republic in southeastern Nigeria during the late 1960s. We experience
this tumultuous decade alongside five unforgettable characters: Ugwu, a
thirteen-year-old houseboy who works for Odenigbo, a university
professor full of revolutionary zeal; Olanna, the professor’s beautiful
young mistress who has abandoned her life in Lagos for a dusty town and
her lover’s charm; and Richard, a shy young Englishman infatuated with
Olanna’s willful twin sister Kainene. Half of a Yellow Sun is a tremendously evocative novel of the promise, hope, and disappointment of the Biafran war."