U.S. Vice President Joe Biden's visit to China has been dominated by discussions about Beijing's new air defence zone.
China's wants to secure an area two-thirds the size of Britain. It includes islands which are also claimed by Japan.
Biden says he had expressed Washington's objection to such a move.
(SOUNDBITE) (English) U.S. VICE PRESIDENT JOE BIDEN, SAYING:
"But China's recent and sudden announcement of the establishment of a new air defence identification zone has, to state the obvious, caused significant apprehension in the region. And I was very direct about our firm position and our expectations in my conversations with President Xi."
(SOUNDBITE) (English) U.S. VICE PRESIDENT JOE BIDEN, SAYING:
"The United States has a profound stake in what happens here. Because we need and we are, and we'll remain a Pacific power diplomatically, economically, and militarily. That's just a statement of fact."
China's Foreign Ministry said Biden was tol