If you pull off Sealion and the US isn’t in the war already or sitting on Gibraltar, they are at least 2 moves away from getting any kind of help to London. Italy should take Gibraltar if they can and block out the Mediterranean. Italy can move troops to the west coast and get into Syria and hopefully Iraq (if Russia hasn’t gotten their first) Then take over Africa. Build London up by 6-10 ipc’s per turn (now there are 6 of any kind of build you made, plus all your air units). US at that point needs to make a hard decision, liberate Europe or kill Japan. Fact is they cant do both. Germany and Japan are making a combined 120-140 ipc’s at that point and Italy can make an easy 30+ with their NO’s running wild in Africa. $ wise, game over, and you didn’t even have to make a move on the US. Still a lot of factors have to be taken care of, like is there still an allied NAVY in the Mediterranean? Does Italy still have any NAVY left? What kind of landing force is left in London. And where is Russia? Can Japan put pressure on Russia? Is Japan bombing the heck out of Calcutta?