Japan publicly rejected the Potsdam Proclamation, and the Allies had to fight the Japanese fascists for the last time. In order to seize the initiative to occupy Japan, the Truman administration of the United States was eager to force Japan to surrender alone in order to gain a favorable strategic position against the Soviet Union after the war, so before the Soviet Union sent troops, it dropped the first atomic bomb on Hiroshima, Japan on August 6. On the 9th, the second atomic bomb was dropped in Nagasaki.
The disaster suffered by Japanese residents is the result of the Japanese militaristic government's refusal to surrender. On August 8 17, Molotov summoned Wu Shang Sato, the Japanese ambassador to the Soviet Union, handed him a Soviet declaration of war against Japan, announced his participation in the Potsdam Proclamation, and personally announced that the Soviet Union had been at war with Japan since August 9.
The Soviet Union declared war on Japan, which not only fulfilled its international obligation to participate in the anti-fascist war against Japan two or three months after Germany surrendered, but also broke out in a long-term military confrontation between the Soviet Union and Japan.
1in the spring of 945, the Soviet army had assembled troops in the Far East according to the Yalta Agreement. Since Japan launched the Russo-Japanese War at the beginning of the 20th century, Japan has been planning a war between soviet strike and Russia, and at the same time, it has pursued an aggressive policy towards North Korea and China. 1928, Japan attempted to invade Siberia to eliminate the possible revolutionary influence of the first socialist country in the Asia-Pacific region.
Shortly after Japan invaded Northeast China, the Soviet government did not stimulate Japan in the Far East for the sake of safeguarding its own interests. 1932, 16 In March, the Soviet Foreign Affairs People's Committee Livinov proposed to the Japanese ambassador to sign a non-aggression treaty, but it was rejected. Exactly 10 years later, Japan signed a neutral and friendly agreement with the Soviet Union in April 194 13, valid for five years, and issued a statement: mutual respect for the territorial integrity and inviolability of the so-called "Mongolian People's Republic" and "Manchukuo".
1932 In August, the Japanese General Staff formulated the 1933 operational plan against the Soviet Union, in an attempt to use the newly occupied northeast of China as a springboard for the northern invasion of the Soviet Union, and to seize the whole Far East, connecting northeast China with Inner Mongolia, as a strategic base for dominating Asia and the world, and to establish a favorable situation for fighting against the Soviet Union.
It was only because of the heroic resistance of the Northeast Anti-Japanese Coalition led by the China Producer Party that "the Kwantung Army was forced to March eastward, which led to the original purpose of preparing the Soviet strategic system and never made progress."
1July 1938 and1May-August 1939, the Kwantung Army was severely hit by the Soviet Red Army in the Zhang Gufeng and Nomenkan incidents and suffered a fiasco. Kwantung army has always been bitter about this.
On June 25th, 194 1, the third day after Germany attacked the Soviet Union, the Soviet ambassador asked Japanese Foreign Minister Yoichi Matsuoka whether Japan would abide by the treaty signed with the Soviet Union and remain neutral. Matsuoka did not give a positive answer to this, but said: "The Three Kingdoms Convention is the foundation of Japan's foreign policy. If the current war and neutrality agreement conflict with this foundation ... then the neutrality agreement is invalid. "
Japan has no sincerity to implement the Soviet-Japanese neutral friendship agreement. The Japanese General Staff not only attempted to seize the Far East territory of the Soviet Union, but also attempted to destroy all the armed forces of the Soviet Union. It plans to use omsk as the dividing line between fascist Germany and militaristic Japan to divide the Soviet Union. The 194 1 year plan code-named "Guan Teyan" is such a plan.
With the defeat of the fascist Germans in the Soviet-German battlefield, Japan's plan to invade the Soviet Union by taking advantage of the favorable situation in the Soviet-German battlefield also fell through. However, Japan "still believes that attacking the Soviet Union is one of the basic purposes of their policy, and has neither given up its aggressive ambitions nor given up its preparations for attack." Accordingly, the Soviet government announced the abolition of the Soviet-Japanese neutrality agreement on April 5, 1945.
The Soviet Union declared war on Japan, which surprised Japan greatly. The Japanese army originally judged that after the end of the Soviet war against Germany, it needed to rest. The war time against Japan may be in the spring of 1946, and it should be in the early September of 1945 at the earliest. The main attack direction of the Soviet Union may be from the far eastern coastal areas of the Soviet Union to the northeast of China. Based on this judgment, the Kwantung Army focused its defense on the east of Northeast China.
At 0: 00 on August 9, the Soviet army launched a war against Japan. On September 2, Japan officially signed the surrender, which lasted for 24 days. The Soviet army called this strategic offensive campaign "Far East War Situation". China's military historians used to call it "the War of the Far East". Including five battles of different scales, namely, three offensive battles in the northeast of China, the landing campaign of South Sakhalin Island and the landing campaign of Thousand Islands.