Question: Name the second world war trilogy written by the English writer, Evelyn Waugh, who is also known for his travel writings in the 1930s and a later travel book  called 'A Tourist in Africa' which appeared in 1960?
Sentence (from "Robbery Under Law"): Waugh's trip to Mexico was financed by the Cowdray Estate, which held extensive interests in Mexican oil and had suffered heavy losses due to the nationalization.
Relevant evidence: No