@calvinhobbesliker:
And am I missing any pieces besides AAA?
In terms of actual unit types, no, but the 2nd ed has a lot more nation-specific sculpts than the 1st ed. Italy and ANZAC got a full complement of unique sculpts (including the infantry unit in the case of ANZAC). Most of the “foreign” equipment pieces that were used by various other powers in the 1st ed were replaced by “domestic” equipment in the 2nd ed; the only gaps that remain to be filled in this regard are the British naval transport and the Russian aircraft carrier (for which domestic units can be obtained fom the 1941 game) and of course the whole French non-infantry equipment set (a gap which, hopefully, will be filled either by HBG when its French set is finally produced or in a hypothetical 3rd ed of the game). In terms of map differences, the 2nd ed has a national production tracking chart aross the top (which personally I don’t like) and it treats differently the area just east of Alaska. In the 1st ed, this area consists of two territories (Yukon and B.C.), each marked with a Canadian roundel; in the 2nd ed this area consists of a single territory (Western Canada) that’s marked with a British roundel; the official errata for the game (http://www.wizards.com/AvalonHill/rules/AA_Pacific_1940_2nd_Edition_FAQ.pdf) states that “Western Canada should have a Canadian emblem. It is originally controlled by the United Kingdom.”