TOBLACH, Italy – The Dolomites were the site of brutal battles between the Austrians and Italians during World War I. Nearly 100 years later, members of European and North American countries once again waged war among these mountains in the depths of winter—this time, in a cross-country ski race. Perhaps appropriately, it was a Swiss athlete who rose above the fray here on Thursday, winning a 32-kilometer freestyle pursuit by skiing his own race and...