The Great General provides a 15% combat bonus to all player-owned land units within 2 tiles. Be warned that stealing the territory of other civilizations can cause diplomatic incidents with the leaders. In Gods & Kings and Brave New World, this ability also has similar properties to the 'Cultural Bomb' ability, adding all adjacent tiles into your territory. The Great General is consumed when it builds the Citadel. The Citadel gives a 100% defensive bonus to any unit occupying it and damages enemy units that finish their turn in tiles adjacent to it for 30% of their total hit points. In order to Construct a Citadel, the Great General must either be in your territory, or on a land tile bordering your territory (even if this land tile is in another civilization's territory!). The Great General can construct the special Citadel improvement. The unit is expended after performing either of these actions.

Construct a Citadel (Great tile improvement).Leadership (+15% Combat bonus to all Land units within 2 tiles.).The number of points required increases with each successive General. Appears when land-based military units generate enough Great General points (by earning XP in battles against non- Barbarian units and Barbarian units inside your territory). A Great Person specialized in land warfare.

Great general civ 5