Stratego with something extra!
Great Stratego-lite game with a few extras thrown in. We really like the special powers of the pieces, as well as the light and dark sides working so differently. Play two games, switching sides, in under 30-45 minutes.
Card-based wargame "lite" that is both a great intro to wargames and a very good game in itself. Getting harder to come by, so pick up a copy. Quite a few good user-made scenarios on the Web prolongs the gameplay as well.