Heroic Women in World War II Rebecca Donner: All the Frequent Troubles of Our Days, the True Story of the American Woman at the Heart of the German Resistance to Hitler, Little Brown, New York, 2021, 560 p., $32. and Chris Hall: The Nurse Who Became a Spy, Madge Addy’s War Against Fascism, Pen & Sword, Yorkshire and Philadelphia, 2021, 220 p., £25/$ 49.94.