The Defense Department has begun work on a Guam Defense System -- following high-profile advocacy over the last year by the top U.S. military commander in the Asia-Pacific region -- and directing the Missile Defense Agency to start designing the first operational Aegis Ashore system on U.S. territory. Adm. Phil Davidson, head of U.S. Indo-Pacific Command, today disclosed the development, explaining the Pentagon executed an internal budget action to begin work on an "Aegis Ashore-like" system that he said is...