Spying for Hitler: The Welsh Double-Cross

Throughout World War II, the loyalties of Welsh nationalists frequently came into question—and it’s long been thought that key figures collaborated with Hitler and the Nazis. In Spying for Hitler, John Humphries sets the record straight, showing that in fact Welsh nationalists deliberately infiltrated German military intelligence—and were instrumental in the creation of MI5’s Double-Cross System, which has been credited with controlling every German agent sent to Britain.