What always gets lost in a study of Sealion is the Luftwaffe plan for the invasion of England. The day after the Dunkirk evacuation, Field Marshall Milch and other officers developed an aerial paratroop/glider assault on Southern England, it would have required Luftwaffe air superiority over only southern England, (which would have been possible) and had limited German Navy involvement early on. It was similar in scope to the Crete invasion.
Paratroops and glider forces would attempt to sieze several airfields and once secured regular forces would be brought in by transport escorted by fighters. The paratroop forces were not used much in the Battle of France as it was and were available for such an immediate operation. They had worked out logistics, transport and had the forces available, which would have still allowed operations to go in the Battle of France.
If all went well the Germans could deploy at least a full division within hours and more within days. Given the condition of the Brits evacuated from Dunkirk (with most of their armor and artillery sitting at Dunkirk) just digging in southern England might have done a great deal of harm.
The plan was presented to Goering before the fall of France who eventually presented the plan to Hitler. Hitler as usual was not interested as it did not coincide with his plans and beliefs than England would quit the game once France was gone. The Germans did not know that France would fall within two weeks, they assumed a much more lengthy fight. Both the Army and the Navy resisted the Luftwaffe’s plan mostly because of inter service disagreements and they felt it was treading on their turf.
By the time of the Battle of Britain England had reconstituted and reorganized most of their land forces and airforce and the window of opportunity had slipped away. And the bigger Operation Sealion was now required which of course the Germans would have been hard pressed to have done.
Would it have worked? Who knows? but I think it should have been tried. And the Brits defending Crete, who slaughtered the German paratroops were prepared, they were not in Southern England in 1940.
Naturally though, I voted for the USSR, :wink: the opportunity to knock them out of the war or at least to take and hold Moscow, a major road, rail and communication hub with no equal in the Soviet Union, was available in the early fall of 41 had the Germans not been diverted and thus delayed in the turn south into the Ukraine. Another Hitler directive.