Training Exercise - Chinese nationalist troops move on the double during recent training exercise on upper Tachen Island. The Tachen Island group, some 14 miles off the Chinese Mainland, has been the target of Chinese red attacks. The troops and Guerillas in the Island group have been busy erecting air raid shelters, training to ward off air attacks and in general being prepared for the usual and the unusual in warfare. December 05, 1954. (Photo by Associated Press Photo).