What are the motifs in The Wrestling Match by Buchi Emecheta?

A recurring idea is the futility of war. The book ends with the sentence, "In a good war, nobody wins," and this theme is brought up early, when the narrator describes how Okei lost his family in the Biafran War. "It was a civil war that did cost Nigeria dear. Almost a million lives were lost, and not just on the losing side; those who won the war lost thousands of people too—showing that in any war, however justified its cause, nobody wins."