At the end of World War II, although after the outbreak of the Pacific War, Japan was gradually at a disadvantage and its navy suffered heavy losses, but even in the later period, Japan still had a large area of territory such as Korea and Southeast Asia, and it was also related to the Eastern Army, the Southeast Asian Army, the Korean Army, the Mainland Army, etc. nearly 7 million, and the strength was still very strong, so why did Japan, which had such a strong strength, choose to surrender?

"I don't know how many atomic bombs there are in the United States"
In order to reduce the casualties of the military, the United States dropped atomic bombs in Japan, the first one was dropped on the small Japanese city of Hiroshima, but there was no effect, the Japanese government did not put one, so the second was chosen in Nagasaki, the important industrial town of Japan, and the government and the opposition began to sit still, and an atomic bomb destroyed the industrial city for decades.
But the emperor and other ruling classes are not afraid of atomic bombs, the only thing they are afraid of is not knowing how many such weapons the United States really has, if there are hundreds or thousands, then all of them are dropped, and Japan is gone, which is unpredictable, so some moderates are beginning to be inclined to surrender.
"Can't go to the northeast"
At that time, why the Japanese emperor and other ruling classes had been stubbornly resisting, the main reason was that they had a plan in their hearts, that is, a retreat, they were ready to ally with the Soviet Union, move the emperor to northeast China, move the capital to Shenyang, rely on the Soviet Union and their huge army, and stubbornly resist the United States, Britain and other allies to the end, so that there can be a glimmer of life and hope! However, at that time, the Soviet Union had not expressed its position, although Japanese diplomats had been active, but the Soviet Union did not nod and did not dare to run directly to the northeast, under the muzzle of the Soviet army.
"The last straw is gone"
Japan's plan was that even if the Soviets did not agree to an alliance, they would at least not attack Japan and declare war on Japan. Because Japan signed a non-aggression pact with the Soviet Union. Then if the Soviet Union did not fight against Japan, the emperor still had a way to retreat, and he could still run to Korea, or to the northeast. However, in order to reduce losses, the United States sacrificed China's interests in exchange for the Soviet Union's declaration of war on Japan. Soon, the Kwantung Army, favored by the Emperor, was destroyed. It also made the emperor's only life-saving straw gone.
The Emperor played all the cards, and the rest either committed suicide like Hitler or surrendered! In the end, the emperor chose the latter, and it is strange that the emperor, who ruled on Bushido, why did not commit suicide by caesarean section after his defeat?