Commander, we have to fight the North-Koreans. The strategy is described in "Stahlins Sudden Guide".

There are four nations on map:

Player: Americans in west
Enemy North-Koreans in east
Allied: United Nations in south
Neutral: China in north

Allieds and neutrals arriving in your camp will be delivered to your troops. 
You can use the tunnel at your camp and the unit factories at the harbor.

Good Luck

Headquarters