Clouds over the mountains in Matsushiro, Nagano prefecture. Picturesque today, but underneath lies a secret many do not know, and many would rather hide.
Underneath these very mountains lies the Matsushiro Underground Imperial Headquarters, a series of tunnels and an underground “palace” that was intended to be used during W.W.II to conceal and protect the Emperor. It was constructed by about 10,000 Korean slave labourers, about 2,000 of whom died during the construction.
