The Soviet Union's silence made Japan even more afraid. After a few days, they finally could not sit still, Foreign Minister Yosuke Matsuoka urgently went to Moscow, trying to contact Stalin about the Japanese army. Japan entered the Mobei area, to prevent the Soviet Union from taking advantage of the problem with Japan. Come to Nomenkan once. Unfortunately, he was rejected in Moscow, and he repeatedly asked to interview Stalin, but the answer he received was "no time". In fact, Stalin really had no free time. He was busy negotiating with the prime minister. How could he have time for this dwarf? With no other choice, Yosuke Matsuoka was forced to reassure Japan that he had no intention of taking risks with the Soviet Union, and at the same time asked the Soviet Union to comply with the Japan-Soviet Friendship Treaty and not do anything regrettable.