"We will not take anything that is not ours, but we will defend every inch of territory that belongs to us," Chinese Foreign Minister Wang Yi told mediapersons here in his annual press conference on the sidelines of the ongoing National People's Congress (NPC) session.
There was no direct reference to India in his press conference, while he launched a frontal attack on Japan and made strong comments about smaller maritime neighbours who contest China's claims over the South China Sea.
"We will never bully smaller countries, yet we will not accept unreasonable denunciation from smaller countries," he said, responding to a question about China's neighbourhood diplomacy policy.
The Philippines, Vietnam, Malaysia and Brunei question China's claims of sovereignty over a host of islands in the South China Sea which in recent months has escalated with the US lending its voice to their demands.
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Wang said that the general situation in China's neighbourhood remains "stable and positive".
"There will not be any change to this position," he said.
"We will more actively practise our neighbourhood diplomacy guideline of amity, sincerity, mutual benefit and inclusiveness."
He said China would also allow more of its neighbours and peoples to benefit from the reform and opening up of the world's second largest economy.
"We are also willing to listen to the voices from our neighbouring countries and respond to the doubts about China's neighbourhood diplomacy," Wang added.
The minister's remarks highlight the mounting tension between China and Japan over territorial and historical rows.
Relations between the two East Asian nations have reached a new low since Japan's "purchase" of the Diaoyu/Senkaku islands in September 2012.
Wang said that if some people in Japan insist on overturning the history of its past aggression, the international community would not tolerate or condone that.