The Civil War (1995)

The Civil War... could they have thought of a more original name? :) This game, programmed by an Englishman, covers the American Civil War from the years 1861 to 1865. You can play as the North or South, and the object is to take over a certain amount of cities of the opposing side before the war ends. It features both strategic and tactical parts in a turn-based format.

This game has about 45 difficulty levels (9 different "strategy factors" like supply, unit types, fatigue, etc. x 5 realism levels each). However, even with all 9 set to the highest difficulty, the game can be won in a few hours.