Your goal is once again to conquer the world. One of the developments in this follow-up is the introduction of alliances (USA, Europe, China, Russia, Australia, Africa, Middle East and Indonesia) which you can control to attack various parts of the world.
Instructions:

Choose your alliance and conquer the world. During battle: [Left/Right arrows] or [A]/[D] to scroll the field. Press [Z], [X] and © keys to fast scroll to the left, centre and right edge of battlefield. Click units to train or use [1..9] hot keys. Press [P] to pause the game