A landmark history of the alliance that won the war and made the peace by the Sunday Times-bestselling author of Appeasing Hitler

After the fall of France in June 1940, only Britain stood between Hitler and total victory. Desperate for allies, Winston Churchill did everything he could to bring the United States into the conflict, drive the Soviet Union and Nazi Germany apart and persuade neutral countries to resist German domination.

By 1942, after the German invasion of Russia and the Japanese attack on Pearl Harbor, the British-Soviet-American alliance was in place. Yet it was an improbable and incongruous coalition, divided by ideology and politics and riven with mistrust and deceit. Churchill, Roosevelt and Stalin were partners in the fight to defeat Hitler, yet they were also rivals who disagreed on strategy, imperialism and the future of liberated Europe. Only by looking at their points of conflict, as well as of co-operation, are we able to understand the course of the war and world that developed in its aftermath.

Allies at War is a fast-paced, narrative history, based on material drawn from over a hundred archives. Using vivid, first-hand accounts and unpublished diaries, we enter the rooms where the critical decisions were made while going beyond the confines of the Grand Alliance to examine, among other themes, the doomed Anglo-French alliance, fractious relations with General de Gaulle and the Free French, and interactions with Poland, Greece and Nationalist China.

Ambitious and compelling, revealing the political drama behind the military events, Allies at War offers a fresh perspective on the Second World War and the origins of the Cold War.