The Ardennes, a forested, mountainous borderland that spans four nations—France, Germany, Belgium, and Luxembourg—was crucial to Hitler’s invasion of France and host to the Battle of the Bulge. In a small valley among these borders lives young Robert, born of an affair between an American GI and the Belgian nurse who rescued him. In his father’s absence, Robert finds a mentor in Markus Hebel, who has faked blindness ever since serving as a Wehrmacht radio operator in Russia. Markus, in turn, confides his secret to Robert—and then he tells the story of his own son, whose fanatical loyalty to Hitler left him trapped during the siege of Stalingrad. In Borders, Roy Jacobsen brilliantly layers these stories of impossible choices between familial love and national identity, culminating in a nuanced, probing novel of shifting wartime loyalties.