Specialist Robert Terrio and his wife, Kary, thought they had avoided a dangerous deployment a few months ago when he learned that his Missouri National Guard unit would do a tour in Kosovo instead of Iraq or Afghanistan. "There's a certain amount of relief that we weren't being deployed to an active war zone,'' Robert Terrio said. Then, last month, Kosovo declared independence from Serbia, a move Serbia refused to recognize. Suddenly, Kosovo started to look a little more dicey. Demonstrators torched the U.S. Embassy in the Serbian capital of Belgrade, mobs attacked several United Nations border posts, and gun...