Roald Dahl on 13 September is celebrated as "Roald Dahl Day" in Africa, the United Kingdom and Latin America. In honour of Dahl, the Royal Gibraltar Post Office issued a set of four stamps in 2010 featuring Quentin Blake's original illustrations for four of the children's books written by Dahl during his long career; "The BFG", "The Twits", "Charlie and the Chocolate Factory", and "Matilda". A set of six stamps was issued by Royal Mail in 2012, featuring Blake's illustrations for "Charlie and the Chocolate Factory", "The Twits", "The Witches", "Matilda", "Fantastic Mr Fox", and "James and the Giant Peach". Dahl's influence
Roald Dahl was to help neutralise the isolationist views still held by many Americans by giving pro-British speeches and discussing his war service; the United States had entered the war only the previous December, following the attack on Pearl Harbor. At this time Dahl met the noted British novelist C. S. Forester, who was also working to aid the British war effort. Forester worked for the British Ministry of Information and was writing propaganda for the Allied cause, mainly for American consumption. "The Saturday Evening Post" had asked Forester to write a story based on Dahl's flying experiences; Forester asked Dahl to