You buy 10 Atlantic transports as the US and you are going to lose Hawaii. If German airpower is coordinated well still those boats will be TOAST if they go anywhere in the north Atlantic. A good german player doesn’t cram his aircraft down russias throat, use them to keep allied boats away from your coasts.
Italy does also start with a bomber, and germany starts with 2. Bomb the naval base at Gibraltar and those US transports can reach much less coastline.
Not only that but the US can only buy 7 transports on US1 (not 10) so it will have a total of 8 transports, protected by 2 DD and a Cruiser, and whatever UK stuff has survived.
Theoretically you could go for Norway like a cannonball with the US, but if you don’t play honest Japan has enough material that it will dominate the pacific at light speed without US intervention.
The soviet pac destroyer can only block if the Soviets declare war on Japan (throwing away the Mongolia bonus) And where and how it can block are VERY limited on J1. It will be annihilated wherever it goes if it angers Japan. Its purpose is to prevent shore bombardments on Amur on Japans turns, which makes that battle just a little bit harder.