An annual report released Tuesday by the Centre for National Defence Policy (CNDP), a part of the Academy of Military Sciences of the Chinese People's Liberation Army (PLA), has stated that big powers have intensified their efforts for regional dominance and United States has accelerated its eastward shift of its strategic focus.
"Amidst the strategic competition among big powers, the fierce oceanic competition and frequent regional conflicts, the complexity, sensitivity and uncertainty of China's security environment loom large," official Xinhua news agency quoted the report as saying.
The report noted that the Asia-Pacific has become "the new global geopolitical, economic and military centre" and big powers have intensified their efforts for regional dominance as "the US has accelerated its eastward shift of its strategic focus."
It warned that a military clash with Japan could happen if the dispute escalates, saying the confrontation between the two countries over disputed Diaoyu Islands in East China Sea may extend from the sea to the air.
It further cautioned that row will not only seriously jeopardise Sino-Japanese relations, but would also threaten regional stability.