Hitler’s Birthday Parade

SS troops march through Berlin in a parade to celebrate Hitler's birthday, April 1939

As some biographers have commented, the passing of 50 years was just one more factor influencing Hitler to go to war. He felt he was running out of time. He had always been a chronic hypochondriac and now, with this milestone birthday, he had been reminded that he was beginning to age.

‘I’m now 50 years old,’ he told his entourage in August, ‘still in full possession of my strength. The problems must be solved by me, and I can wait no longer. In a few years I will be physically and perhaps mentally no longer up to it.’