Chinese leader Xi Jinping says he won't permit the country's sovereignty, security or development to suffer damage. His comments are part of a foreign policy address amid ongoing territorial disputes with Japan and other neighboring states.

Xi told members of the ruling Communist Party's Politburo on Tuesday that China would stick to its policy of peaceful development but would never sacrifice its legitimate rights or core interests. Foreign nations shouldn't expect China to compromise or cut deals in ways that would sacrifice its national interests.

Xi's comments reflect observers' views that he would take a relatively tough stand in foreign affairs in keeping with China's recent assertiveness over its territorial claims. Beijing has been routinely sending ships to confront the Japanese coast guard in islands both claim in the East China Sea.