Troops from nearly 50 lands dine on combat meals in Afghanistan — each reminding them of where they’d rather be. Related Article » PHOTOGRAPHS BY ASHLEY GILBERTSON/VII NETWORK, FOR THE NEW YORK TIMES; FOOD STYLIST, MARIA WASHBURN | Send Feedback Correction: September 19, 2010 In an earlier version of this feature, a caption misidentified the hazelnuts in the Lithuanian M.R.E. as almonds.