A top U.S. admiral said Monday he has issued a rare invitation to Chinese commanders to observe a U.S. military exercise next month on Guam in an effort to strengthen ties. Adm. William Fallon, wrapping up a weeklong visit to China, said he hoped such visits would become part of regular exchanges between the two forces, which have had little interaction since they broke off following the 2001 collision of a U.S. Navy plane and a Chinese fighter jet. Full Story