The Memoir '44: Breakthrough expansion will take you deep into the battles of World War II with two double-sided, 9-panel board maps covering all four Memoir '44 map environments: countryside, beach, winter, and deserts.These oversize boards stretch the limit of current printing technology and are 13 x 17 hexes deep, opening up the Breakthrough format to new, more expansive scenarios!This product is an expansion: Memoir '44 base game required to play.