Build Aircraft carrier and a tranny.
get US to put two fighters on your carrier and you should be fine. however, if Germany choses to attack, then they will most likely loose most of their fighters, so its sortof a win win sitiation.
As for earlier posts about UK wining Africa… If the german player is somewhat clever, he takes out the entire UK navy 1st turn, so for the few following turns, Africa is lost, but if you build the fleet i surgested, or any other fleet you see fit for that matter, you should be able to take out the rest of germanys navy, and retake africa.
Its not often UK keeps thier navy, but if they do, the game is sealed, really.
However, an importatn factor for any of this to work is that russia sends their navy to england as fodder, and that US protects the carrier with both fighters. Also they must continually send transports and inf over to Europe.
Should work fine.