While in Japan, Sorge developed sources in the Japanese war cabinet and reported to Moscow in August 1941 that Japan was planning an attack on [[Pearl Harbor]]. In October 1941, as German troops threatened to capture Moscow, 700,000 Red Army troops were moved from the Far Eastern front to defend Moscow and halt the German advance. Soviet and Japanese forces had clashed at the outset of [[World War II]] in a series of battles at [[Khalkhin Gol]], but upon learning that Japan was focusing on war with the United States and not the Soviet Union, defense of the Far Eastern border was no longer a necessary priority. Marshall [[Georgy Zhukov]], who ultimately was to capture [[Berlin]] in 1945, commanded Soviet forces at Khalkhin Gol. Zhukov and his armies were transferred to the European zone. | While in Japan, Sorge developed sources in the Japanese war cabinet and reported to Moscow in August 1941 that Japan was planning an attack on [[Pearl Harbor]]. In October 1941, as German troops threatened to capture Moscow, 700,000 Red Army troops were moved from the Far Eastern front to defend Moscow and halt the German advance. Soviet and Japanese forces had clashed at the outset of [[World War II]] in a series of battles at [[Khalkhin Gol]], but upon learning that Japan was focusing on war with the United States and not the Soviet Union, defense of the Far Eastern border was no longer a necessary priority. Marshall [[Georgy Zhukov]], who ultimately was to capture [[Berlin]] in 1945, commanded Soviet forces at Khalkhin Gol. Zhukov and his armies were transferred to the European zone. |