The international situation in 2012 remains shrouded in the shadow of global financial crisis.With the relative decline of the U.S.and other Western countries and the rise of emerging powers,power politics together with multilateral mechanisms have determined the world's political structure and its future development.In traditional security fields,the Middle-east and North African unrest continues and Syria is still in civil war;the U.S.began to deploy its strength in Asia Pacific,and the importance of Sino-US relationship keeps increasing.In non-traditional security fields,terrorism came into a low tide,the American plate rises in the global energy map,cyber security has posed new challenges to nation states,and water security has become a significant issue in global governance.In China's periphery,with territorial disputes still simmering,China has faced prominent challenges to safeguard national sovereignty and maintain the environment for peaceful development. <<