On September 18, 1931, Japan launched a war of aggression against China, and from here, The Japanese army began to gradually invade. First occupied the three northeastern provinces, and then attacked Beiping, Tianjin, Shanghai and other places, the Battle of Songhu was the first large-scale battle between China and Japan, the Japanese army suffered heavy losses in this war, and also crushed Japan's plan to destroy the country in March. In the major wars, people almost all swore to resist to the death, this city is known as the most difficult city to fight, Japan sent 400,000 elite troops to attack for three years, and finally left only 110,000 bones. The city is Changsha, and this war is also known as the Defense of Changsha.
Before the First Battle of Changsha, Germany and the Soviet Union signed the Soviet-German Non-Aggression Pact, and Japan's elite Kwantung Army had just been defeated by the Soviet Union at the Battle of Nomonkan. The Battle of Nomonkan took place in the Far East, between the Soviet Union and Japan, but they represented the puppet states of Manchukuo and Mongolia, and the war ended with the defeat of the Japanese Kwantung Army. The Japanese Kwantung Army suffered heavy losses in this battle, and japan and the Soviet Union maintained peaceful relations until the August storm.
Because of the defeat at the Battle of Nomonkan, the Japanese turned their objectives south. In September 1939, the commander of the Japanese Eleventh Army, Okamura Ningji, gathered 100,000 people to attack Changsha from Ganbei and other places, intending to annihilate the main force of the Ninth Theater in the shortest possible time. Hunan is a famous barn in China, which has been providing important resources such as food and soldiers for the army since the beginning of the War of Resistance Against Japanese Aggression, and the headquarters of the commander of the Ninth Theater of Operations is located in Changsha.
The two sides engaged in fierce fighting, and the Japanese Eleventh Army was constantly ambushed and realized that it was not right to retreat. They did not give up, and in April 1941, the Japanese army became the commander of the Japanese Eleventh Army and wanted to launch an attack on Changsha. On the eve of the war, the Soviet-German war broke out, in order to draw out troops to go to war with Britain and the United States, it could only reduce the scale of the war, but it was decided to abandon the use of force against the Soviet Union in the middle of the way, so it continued the Changsha battle plan, code-named "Plus Operation".
The Japanese army mobilized a large number of troops to assemble in the Yueyang area, and the war was about to break out. The Ninth Theater was not idle, and in March 1941 a counterattack operation was drawn up. Under the fierce fighting between the two sides, on the afternoon of September 27, 1941, the Japanese army began to enter Changsha, but because of the continuous combat, there was no way to ensure logistics, and could only choose to retreat. Receiving the news of the retreat, the Ninth Theater of Operations, which was transferred to Xiangtan, immediately launched a pursuit. During the counter-offensive, the Japanese 13th Division was in a desperate situation, and their division commander, Hidetaro Uchiyama, had even written a suicide note. However, the arrival of the reinforcement division saved them, and the operation annihilated 7,000 Japanese troops.
On December 10, 1941, the Japanese intended to launch another attack on Changsha. The long-term fierce battle made the Ninth Theater decide to fight a decisive battle against the Japanese army in Changsha, and during the war, various armies gathered in Changsha. On January 3, 1942, the Japanese Sixth Division joined the battle, and after a long time of being unable to capture Anand, he had to order a retreat. Naturally, they would not come as soon as they wanted, and they would leave whenever they wanted, and the Ninth Theater gathered all the troops near Changsha to block, intercept and pursue the Japanese army.
On January 12, 1942, the Japanese army retreated north of the Miluo River, and the war was only slightly contained, and on the 16th it returned to the state it was in before the war. The three-year war ended with more than 400,000 troops, more than 110,000 of whom were annihilated. The war ensured the security of most of Hunan and the southwest rear. It also smashed the strategic goal of the Japanese army to "force a landing by war".
The Battle of Changsha was the first Japanese offensive in the Chinese theater after the attack on Pearl Harbor, and the first victory of the Allies in the Pacific War. The Battle of Changsha inspired people, strengthened the determination to resist Japan, and forced the Japanese army to return to the original strategic posture. After fourteen years of resistance, on August 15, 1945, Japan officially and unconditionally surrendered.