First Picture, Soviet-Mongolians, Japs Battle : Here's the first Picture to reach the United States showing Japanese Troops in action against Soviet Mongolian Troops in the Despate Outer Mongolian border area near Lake Bor (Buir Nor) fighting, which started on May 11, has raged bitterly with estimates of numbers killed running into thousands. Large Scale air battles are described in this vicinity. June 27, 1939. (Photo by Acme Photo).