In the early 1970s, several tactical games made their way onto the expanding wargaming market, including "Grunt" (1971) featuring platoon-level warfare in Vietnam and "Combat Command: Platoon-Company Combat, France, 1944" (1972) billed as a western front sequel to "PanzerBlitz", and "Soldiers" (1972) about World War I, all by Dunnigan/SPI. Dunnigan then crossed another boundary and became the first publisher to release a game on the then-ongoing Cold War, called "Red Star/White Star: Tactical Combat in Western Europe in the 1970s". While the game was successful, Dunnigan was disappointed with it, citing difficulties in realistically portraying tactical combat in a tabletop board game.