Name of an educational conflict resolution game of the 1970s for the classroom.?

The class was divided into 5 teams, each representing a fictitious country. Each country was given a secret envelope with its own objectives to pursue. All but one country had a set of troop counters, identical cartoons of unlikely looking soldiers with helmets, gasmasks, and marching with crossed, rigid legs.

The country without troops had the objective of getting all sides to meet and resolve differences peacefully, and its emblem was a sheaf of wheat. That team faced no military threat in the game. There were two smaller countries in the middle of the map where the fighting occurs; they were North and South Korea in all but name. A large China-like country was a natural ally of the North and shared its northern border, and another powerful country was its adversary, was friend to the South, and lay overseas. On the map It resembled Australia inverted. If the sides went to war, the teacher had a combat calculator and would reveal the results in class the following day.