Fionn - Hitler's 'gameplan' was war with the United Kingdom but not before 1948. His naval building plans were designed to provide some sort of local parity with the Royal Navy by that date. He was hoping for appeasement until then, and as such had no firm plans for invading Britain. Without naval superiority (which he could not obtain without extensive building) he was hoping for overwhelming air superiority - hence the Battle of Britain.

Les