General Cheng has studied the American strategy in the Iraqi war from top to bottom, back to front, and now he is massing his divisions on the Manchurian border. To the west, Siberia’s Marshal Yesov is readying his army. Their aim: To drive the American-led U.N. force back to the sea. The counterstrike: Unleash the brilliantly unorthodox American General Douglas Freeman. If this eagle can’t whip the bear and the dragon, no one can…