US Tells 27,000 Reserve Troops to Prepare for Duty By Charles Aldinger WASHINGTON (Reuters) - In a fresh sign of preparation for possible war with Iraq, the United States has ordered another 27,000 Reserve and National Guard troops to prepare for active duty, defense officials said on Saturday. They said the alert was issued by the Pentagon on Friday night and that the services were identifying units ranging from Navy port workers to Army engineers to be prepared for a likely call to active duty early in the new year. "Defense Secretary (Donald) Rumsfeld has not given a final call-up...