Why did Japan bomb Hiroshima and Nagasaki?

It was the United States that bombed Hiroshima and Nagasaki with atomic bombs, because Japan bombed Pearl Harbor in the United States first.

The reason why the United States bombed Hiroshima and Nagasaki is because Hiroshima is the city of the Japanese army and the seat of Japan's second general headquarters for defending the mainland. All Japanese troops going to China, Korea, Southeast Asia and Nanyang Islands set sail from Hiroshima, and Nagasaki is an important base for Japanese industry, especially shipbuilding.

Bombing these two cities will help weaken the Japanese army. Moreover, the terrain of these two places is relatively flat, and the weather is OK, which is suitable for dropping atomic bombs and obtaining satisfactory bombing effect.

Attack on pearl harbor

19411On February 7th, imperial japanese navy attacked the United States and bombed warships and military targets in Pearl Harbor. More than 350 Japanese planes carried out two waves of attacks on the Pearl Harbor Naval Base, throwing armor-piercing projectiles and torpedoes at American battleships and cruisers. The American army was unprepared. They woke up in a loud explosion and rushed to defend themselves.

The whole pre-emptive attack ended in 90 minutes. At that time, Japan sank four battleships and two destroyers, blew up the 188 plane and damaged more buildings, ships and planes. About 2400 Americans were killed in the attack; Another 1250 people were injured, which greatly shocked the United States.

After the attack, Japan officially declared war on the United States. The next day, American President Roosevelt delivered a famous "national humiliation" speech, and then he signed a formal declaration of war against the Japanese Empire. A few days later, Nazi Germany and Italy declared war on the United States, and the United States immediately declared war.