Gary Grigsby's Pacific War: Matrix Edition covers virtually every aspect of the war and includes just about every ship, aircraft, land unit, and important leader that took part in the conflict.  The game has a steep learning curve and not for the faint at heart and has a lot to offer.  If you every wanted to conduct the whole War in the Pacific now is your chance.

You decide where to attack or invade.  Build up your forces in the rear areas or reinforce the front line troops the choices are all yours.  Many patches and enhancements have been added to once again put this Gary Grigsby classic on the top of your to play list.