You used to be able to use it for a a blitz win in one of the alpha variations.
Listed cities below taken by G3, using heavy navy and air builds, done BEFORE the U.S. is in the war. You used to be able to eek out a win. This worked out quite well, but that was before the rule regarding invasion of Ottawa or London bringing U.S. into the war, and it is dependant on the Russians putting their stacks Directly on the Germans eastern front - expecting sea lion, but not an attack into novogord aswell.
But no more… South Africa as a victory territory would really add some depth for both Japan and Italy to help out in the grand scheme.