For those who missed it, Professor John Mullan has a great analysis of Adichie's Half of a Yellow Sun.
This is a sample of his insightful discussion:
"Structurally, the crucial viewpoint is Ugwu's. The novel begins with his experience and he is given the book's last words, which are the dedication of a book about the Biafran war, extracts from which have been interleaved throughout the novel. We were led to believe that this book was being written by Richard, the professional writer who has set out to record this historic catastrophe, his righteous "indictment of the world". As the novel ends, he gives up on the project, and the title he was using – The World Was Silent When We Died – is taken over by the former houseboy."