Battalion Wars is a real-time tactics game developed by Kuju Entertainment, and released by Nintendo for the GameCube in 2005. It is a spin-off of the Advance Wars series. The player controls a vast array of units ranging from infantry, armoured divisions and aircraft, completing missions through a mixture of unit management and strategic planning. In the game's story, the player operates as a commander of a battalion, who initially take part in a conflict between two nations that culminates in an eventual alliance between them, in response to a surprise attack by a third nation.