Nations at War: Core Manual v2.0

From the Publisher:

Nations At War v2.0 rules are the latest set of guidelines and regulations for the game system written by Sean Druelinger, Lead Developer of the Nations At War Series.
 

These rules present the core rules for the game system.  This new rule book has been designed to place all the rules in one book, making playing the game is easier and faster than ever.
 

Notable changes from previous versions of the rules (v1.0 and earlier) will be presented in BLUE text. This new edition of the rules can be used with previously published modules.