Subtitled 'The Battles for Zagreb, 1979'Part of SPI's Modern Battles II (Quad) series, notable for its use of untried units to simulate the uncertainty of armies that have never seen battle.This game, at the battalion/regimental level with hexes measuring a mile across, simulates combat in northern Yugoslavia in four scenarios.: 'Civil War' between the Serbians and Croatians with NATO reinforcement 'Thrust for Zagreb', with the Soviets invading and NATO helping defense 'Relief Column', following up after a Soviet takeover of Zagreb the three-player 'Battle for Zagreb' between NATO, the Soviets and the Yugoslavs. - BoardGameGeek