Jabarkan Japan: dari Pertempuran Khalkhin Gol dalam bahasa melayu

Fighter/bomber sorties 10,000 (estimated); 7.7mm machine gun rounds fired 1,600,000; bombs dropped 970 tons.

While this engagement is little-known in the West, it played an important part in subsequent Japanese conduct in World War II. The battle earned the Kwantung Army the displeasure of officials in Tokyo, not so much due to its defeat, but because it was initiated and escalated without direct authorization from the Japanese government. This defeat combined with the Chinese resistance in Second Sino-Japanese War, together with the signing of the Nazi-Soviet non-aggression pact (which deprived the Army of the basis of its war policy against the USSR), moved the Imperial General Staff in Tokyo away from the policy of the North Strike Group favored by the Army, which wanted to seize Siberia for its resources as far as Lake Baikal.

Instead, support shifted to the South Strike Group, favored by the Navy, which wanted to seize the resources of Southeast Asia, especially the petroleum and mineral-rich Dutch East Indies. Masanobu Tsuji, the Japanese colonel who had helped instigate the Nomonhan incident, was one of the strongest proponents of the attack on Pearl Harbor. General Ryukichi Tanaka, Chief of the Army Ministry’s Military Service Bureau in 1941, testified after the war that, "the most determined single protagonist in favor of war with the United States was Tsuji Masanobu." Tsuji later wrote that his experience of Soviet fire-power at Nomonhan convinced him not to attack the Soviet Union in 1941. On June 24, 1941, two days after the war on the Eastern Front broke out, the Japanese army and navy leaders adopted a resolution "not intervening in German Soviet war for the time being". In August 1941, Japan and the Soviet Union reaffirmed their neutrality pact.

The United States and Britain had imposed an oil embargo on Japan, threatening to stop the Japanese war effort, but the European colonial powers were weakening and suffering early defeats in the war with Germany; only the US Pacific Fleet stood in the way of seizing the oil-rich Dutch East Indies. Because of this, Japan's focus was ultimately directed to the south, leading to its decision to launch the attack on Pearl Harbor on 7 December of that year. Despite plans being carried out for a potential war against the USSR (particularly contingent on German advances towards Moscow), the Japanese would never launch an offensive against the Soviet Union. In 1941, the two countries signed agreements respecting the borders of Mongolia and Manchukuo and pledging neutrality towards each other. In the closing months of World War II, the Soviet Union would annul the Neutrality Pact and invade the Japanese territories in Manchuria, Korea, and the southern part of Sakhalin island.