Secretary of Defense Leon E. Panetta signs the guest book after a meeting with Commander of the People's Liberation Army Armored Forces Academy Maj. Gen. Zu Hang in Beijing, China, on Sept. 19, 2012. Panetta also met with Chinese Vice President Xi Jinping and his defense counterparts to discuss regional security issues of interest to both nations. Panetta visited Tokyo, Japan, before continuing to Beijing and will travel to Auckland, New Zealand, on a weeklong trip to the Pacific.