From the Washington Post (link):
Adm. William J. Fallon, commander of U.S. forces in the Pacific, flashed what aides described as a broad grin as he sat in the cockpit of a twin-engine FB-7 fighter-bomber, China’s most advanced domestically produced warplane.
“They really went out of their way to accommodate nearly everything I wanted to do,” he said. The goal, he added, is to push for more contacts, “to see more things and different things, and to be more open and transparent in military matters.”
Seeking to accelerate the movement, Fallon said, he invited senior Chinese officers to observe U.S.-led joint military exercises next summer near the Pacific island of Guam, promising them the opportunity to review U.S. bases and board U.S. warships during air-sea drills. Implicit in the invitation, he added, was the idea that, if the Chinese attend, they would reciprocate by inviting U.S. officers to observe future Chinese exercises “in a manner we would like to make a standard for both countries.”
See also – China Daily’s “US commander invites China to observe Guam drills” (link); – U.S. Pacific Command official web site’s “U.S. Admiral Invites China To Observe Military Exercises” (link)