If i may . . .
I agree w/ MB, DM, and EJ. Sometimes i do not like to bring the trn “as cannon fodder” as it were, to Pearl Harbor. The reason for this is to get more troops onto the mainland, to take SFE, or to help out in other places. Mabye even to get into position to take NZ/Aus. For me getting a force onto Asia is the most important thing, and having a couple of extra BB’s wont help you do that if you played your first few turns properly.
The thing is, usaully i see the US player bring its trn and bb down south to get the BB to the Atlantic. IF the US attacks my Pearl fleet, then i’m generaly prety happy about that. On the occassional chance that they actually do win, they’ve exhausted their airforce. This is a bit of a setback for the liberation of Europe, and it gives Germany a little more breathing room and attacking space.