There was a very interesting game called 'Kingmaker' that I enjoyed.
I know it's a few years old, but it rocks! I've only got the European Theater/Battle of Britan, but I've been playing it all summer, and am still not tired of it yet.
They make a Japanese Theater version, but my motto has always been "Buy hardware, not software". Haven't found a copy yet.
Have you played the computer version of "Kingmaker"? I had played the boardgame quite a bit when it first came out and, when it came out for computer, I snapped it up.
I've got about a 50% win record against the computer ... a very combative and "intelligent" AI program.
When I was stationed in Germany, we took over an empty barracks room and played the old SPI monster game "Terrible Swift Sword". It lasted about three months and, once you entered the room, you were not allowed to talk to another player unless he was on your side AND his counter was in the same hex as yours. We created "courier" pieces to send messages back and forth from one subordinate command to another, with the three referees (to ensure "compliance" with written orders) in between. Even though everybody could "see" the enemy's units, the "fog of war" still raised its ugly head.
In our game, "Robert E. Lee" ordered portions of "Early's" command to march west, ostensibly to reinforce Pickett in the center. The order was received and "Early" began his march. Unfortunately, as "Lee" hadn't specified where the march was to be made to, the referees informed "Early" that he was to keep marching west until "Lee" sent an additional message to either halt him or direct him in.
When the battle heated up, "Lee" forgot about the order and, with "Early" passing through the hills to the northeast, didn't "see" his troops leaving the battlefield until several game-hours had passed. If the refs hadn't cut "Lee" a break, my guess is that "Early" would have been marching to Pittsburg.
Ah, the good old days when we were unmarried and didn't think twice of staying up all night doing things like this.