Even after the legendary evacuation from Dunkirk in June 1940 there were still large British formations fighting the Germans alongside their French allies. After mounting a vigorous counterattack at Abbeville and then conducting a tough defence along the Somme, the British were forced to conduct a second evacuation from the ports of Le Havre, Cherbourg, Brest and St Nazaire. While France was in its death throes, politicians and soldiers debated what to do – flee to England or North Africa, or seek an armistice.

Case Red captures the drama of the final three weeks of military operations in France in June 1940, and explains the great impact it had on the course of relations between Britain and France during the remainder of the war. It also addresses the military, political and human drama of France's collapse in June 1940, and how the windfall of captured military equipment, fuel and industrial resources enhanced the Third Reich's ability to attack its next foe – the Soviet Union.