"I have decided to prepare for, and if necessary to carry out, an invasion against England."--Adolph Hitler, July 16, 1940 Operation Sealion was the codename fo

In the summer of 1940--after the Nazis crushed France and defeated Belgium--all Britain prepared for a German invasion. English forces stood on the Channel coas

What if Germany had invaded the British Isles? “A distinguished contribution to the canon of alternate histories” (Military History). If Britain Had Fallen

All Britain was convinced that the Germans would come. They had nothing left with which to oppose the German panzers. In only five weeks the Germans had crushed

The WWII historian’s bracingly accurate analysis of what might have happened if Hitler ordered Operation Sea Lion to breech the shores of England. In June 194