If he doesn’t do sealion before a war with Russia starts, use your air force to prevent it from ever happening. Also build a huge assault force to take out Italy (by far the weakest axis,) and plunder from them. This force can soon be used in liberating France. Make sure you do it before Germany can take out Moscow, so it is indeed like a race based on time. Also make sure that Japan doesn’t get too excited, but remember. If the Japanese player seems to not be interested in Russia and if you can build a navy to hold him back whatever Japan does is useless. Japan takes over China, ANZAC, and Pacific British income. Who cares? The Allies need to capture all the capitals, not all the cities. Like I said take out Rome then slowing lead to the fall of Berlin, then do some damage control in the Pacific and build a force to take out Japan. Also have the other allies to build planes to fly around and hit Japanese stuff, either their troops or boats.