Those Angry Days by Lynne Olson

Roosevelt, Lindbergh, and America's Fight Over World War II, 1939–1941

Set in the late 1930s and early 1940s, the book traces the clash between British leaders forced to choose between appeasement and resistance and American leaders constrained by powerful isolationist sentiment, focusing on Winston Churchill’s warnings about Nazism and Franklin D. Roosevelt’s quiet campaign to shift U.S. policy from neutrality to active support—through covert measures and the eventual Lend-Lease program; it chronicles the political and public battles (Chamberlain’s appeasement, the rise of America First and isolationist figures, journalists and activists shaping opinion) and shows how backroom diplomacy, personal relationships, and moral urgency transformed two democracies into allies against Hitler, all rendered with vivid archival detail and compelling portraits of the key players.

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