I was the U.S. the one time I played Anniversary in 1942 scenario. I almost always played Germany before so it was a welcome change to release those reins and try something different. My fleet survived in the pacific so I managed to build a bomber a turn to send to U.K. to SBR Germany. In addition to that I built transports, and some troops to use to ferry towards the U.K. fleet for protection in preparation of a future attack on Western Europe.
Since you are spending most of your money in the pacific there is not much to do on the other side of the world with the little what is left over. If you can manage 12 IPCs you can keep bombing Germany’s ICs to help support the war. Usually when I saw the U.S. going pacific I was happy to have it off my back when I played Germany.