We used to play it in junior high and high school. My neighborhood was all boys (except some weekends when daughters of divorced parents were visiting). We were pretty nerdy and in summers would play DnD, axis and allies, risk, just about everything. And diplomacy! Diplomacy was a perfect multi-tasking game. At the beginning you could have several moves a day but as the game goes on and negotiations get more complex we would often just have one move a day. We had games that lasted all summer and when school started again we'd flip the board. :)

Did you play Fortress America?