Press 1 to add 10 units, 0 (zero) to win level.
In this small but highly polished defend and attack strategy game you need to capture as many bases, anti-air guns and turrets to defend your base. Attack the enemy using tanks and helicopters to gain victory in each of the 15 levels.
Use the mouse to select bases and send troops. Once a base is selected you can send troops by clicking on another base. Hold SHIFT key to send all available troops.