Pentagon successfully tests ICBM defense system for first time

By Phil Stewart and Lucy NicholsonWASHINGTON/VANDENBERG AIR FORCE BASE, Calif. (Reuters) - The U.S. military on Tuesday cheered a successful, first-ever missile defense test involving a simulated attack by an intercontinental ballistic missile, in a major milestone for aprogram meant to defend against a mounting North Korean threat.The U.S. military fired an ICBM-type missile from the Kwajalein Atoll in the Marshall Islands toward the waters just south of Alaska.It then fired a missile to interc