（Chuck Hagel氏） が2013-8-19（月）ワシントンのペンタゴンで３時間会談した。
"We always insist that related disputes be solved through dialogue and negotiation," Chang told a joint news conference at the Pentagon.
"However, no one should fantasize that China would barter away our core interests, and no one should underestimate our will and determination in defending our territory, sovereignty and maritime rights," he said.
China claims virtually all of the South China Sea, despite rival claims from other countries in the region, which have accused Beijing of staging a gradual takeover of disputed islets.
Chang said his country opposed any "arms race" in the cyber realm, as well as any "double standard," amid recent revelations of massive electronic surveillance carried out by America's National Security Agency.
"Regarding how to solve the cybersecurity issue, I believe it requires the common exploration and cooperation between China and United States rather than ungrounded accusation or suspicion," he said.
And Japan and China are locked in a bitter feud over which country has sovereignty over islands in the East China Sea.