In 1940–1, he accompanied Orde Wingate on his mission to Fascist-occupied Ethiopia during the Second Italo-Ethiopian War, and wrote a book of his experiences called Guerrilla War in Abyssinia.
In 1940–1, he accompanied Orde Wingate during the Second Italo-Ethiopian War into Fascist-occupied Ethiopia and subsequently wrote a book about his guerrilla experiences in Abyssinia.