The former Japanese military¡¯s preparations for a possible battle in the country¡¯s mainland in the closing days of World War II remain etched in the memories of residents of a former town in central Japan, where a replacement military headquarters was being constructed.

Facing the growing threat of defeat, the military planned to move its headquarters from Tokyo to an area including the town of Matsushiro, now a part of the city of Nagano. The replacement headquarters was not completed, but construction continued until Aug. 15, 1945, the day of Japan¡¯s surrender in the war.

Yoshinobu Mashima, 96, was mobilized in April 1945 for construction work on Mount Maizuru, in a village neighboring Matsushiro. Then a third-year high school student, he and his classmates gathered at school each morning without being informed of their tasks, and went to work under the direction of military engineers.