Army Sgt. Terrance Mobley is trained to be a tough guy. But he turns sentimental in a second when asked what it's like to be at war during the holidays. "When you're over there away from everyone you love and everyone who loves you, you kind of feel all alone," said Mobley, 34, a supply sergeant at Fort Huachuca, southeast of Tucson. Mobley, who has been overseas three times in recent years, remembers sitting on his bunk in Iraq and marveling at the Christmas cookies, cards and heartfelt letters he received from people back home whom he didn't even know....