DAY 12 —Thursday ushered in Thanksgiving in Afghanistan. Soldiers, sailors, airmen and marines will sit down sometime today and enjoy a traditional turkey dinner with all the trimmings at one of the dining facilities scattered at each base.This holiday has become one of the most celebrated in American culture with families coming together to enjoy friendship and talk, and for some to enjoy a football game on the television even though the featured teams may be Dallas or Detroit.Thanksgiving at Camp Phoenix, which is on the outskirts of Kabul near the international airport, is a regular work day with a …