Japan always wants to be the no 1 Asian powers during the early 1900. He wanted to conquer china. 1940, the Japanese government associated their country with Nazi Germany in the Axis Alliance, and, in the following year, occupied all of Indochina.
The United States, which had important political and economic interests in East Asia, was alarmed by these Japanese moves. The U.S. increased military and financial aid to China to strengthening its military power in the Pacific, and cut off the shipment of oil and other raw materials to Japan.
Japan was poor in natural resources; Japan decided to attack America in Pearl Harbor which would weaken their fleet(navy) and allowing Japan to attack most of the pacific islands.
On Dec 7 1941, Japan attacked on us naval base Pearl Harbor. Over 3,500 Americans wounded, sank or badly damaged 18 ships; over 350 destroyed or damaged aircraft.
This attack brought America in 2nd world war. And in Revenge of pearl harbor attack . US blasted to atom bomb in Japan .
In the early morning hours of August 6, 1945, a B-29 bomber named Enola Gay took off from the island of Tinian . The bomber, piloted by the c Colonel Paul Tibbett .
At approximately 8:15 a.m. released "Little Boy. its 9,700-pound uranium bomb . Some 70,000 people probably died as a result of initial blast, heat, and radiation effects .
At 3:47 a.m. on August 9, 1945, a B-29 named Bock's Car lifted off from Tinian . this time the poilet was Major Charles W. Sweeney . At 11:02 a.m., at an altitude of 1,650 feet, Fat Man (right) exploded over Nagasaki (). the explosion was later estimated at 21 kilotons, 40 percent greater than that of the Hiroshima bomb. Over 40,000 people died initially, with 60,000 more injured.
The day after the attack on Nagasaki, the emperor of Japan (right) overruled the military leaders of Japan and forced them to offer to surrender (almost) unconditionally.