Nut katti dherai question. Class ko lagi ho ki, just for fun? Before you ask those questions, you have to look at, and understand the American foreign policy, Russian foreign policy, China's devlopment and growth rate and energy soucres to sustain the growth, the politics of Central and South Asia, Russian stand on Central Asia (especially Krgyzstan).. Japan's changing security and foreign polices, the Taiwanese issue, and India-Pakistan relations. You cannot analyze or answer those questions by isolating China. China is a part of international system, so you have to have broad framework to analyze where/how far China will go in this century.