You have the original box or the 2nd edition box?
30 ipcs one time bonus for USA in Pacific only, + your vc bonus
For global you just make the VC bonus at the end of round 3 and you are at war at the end of your turn. If the axis throw you into war before that you get your VC bonus that round. Lots of Japan players dow round 1 now a days, I always j1 dow and it has been 100 games since I did a j2 dow. I got no patience and I hate waiting :)