Unnamed place in Manchukuo border... Ever Watchful Westward... with larger and larger Outer Mongolian forces a massing on the western border of Manchukuo, Japanese and Manchukuo border guards are keeping a sharp lookout for frontier incursions. The terrain in the fighting area is so level, however, that the watchers must dig themselves holes in the ground and camouflage them with undergrowth from elsewhere, so they will not be too visible to possible raiders. July 04, 1939. (Photo by The Domei News Photos Service).