MontyB, I do not disagree with most of what you say. The Royal Navy would be one tough nut to crack. But by this time they would be fighting the Nazi juggernaut by themselves. But even without the RAF the Royal Navy could persevere. Again, there may be other reasons Hitler didn,t stay with the Sea Lion plan. He secretly admired the British and hoped they would see reason and make peace. But I still believe his obsession with Russia was the main reason for changing track. But Hitler could have destroyed Britain another way. Read my piece to Le Enfield. Oh, and by the way I still believe the Battle of Britain was a decisive battle. If he had destroyed the RAF the world would have held it's breath in anticipation of his next move.