Since the founding of People Republic of China, Taiwan issue has become the most sensitive problem which is hardest to solve in Sino-U.S. relationship. Undoubtedly, Taiwan issue is a domestic issue of China, and it should be solved by Chinese government. But Taiwan issue was started with diplomatic characteristics due to historic and realistic factors. Whereas America's policy towards Taiwan was always subordinated to its strategy towards China, and America's strategy towards China was changed with the chan...