Bo Lidegaard’s Countrymen is the first full history of how the Danish people managed to rescue the lives of 95% of the country’s Jewish population. Like her Danish counterparts, Gertrude van Tijn, the subject of Bernard Wasserstein’s The Ambiguity of Virtue, rescued Jewish lives. Working for the Nazi-appointed Jewish Council in Amsterdam, however, she was denounced by some as a collaborator. Both are exceptionally heroic tales of bravery, attesting to the incredible moral fortitude of s...