I. Historical reasons
The "black ship" of the United States has opened the door to Japan, but the Japanese have always had a bad feeling towards the United States. After World War I, the Washington system was established, and a new international political pattern was established in the Far East. The formation of this system has shaken the international stage centered on Europe, and gradually formed a pattern in which Britain and France dominate the world and the United States and Japan compete for hegemony.
The Five-Nation Naval Treaty made Britain formally recognize the principle of equal naval power between Britain and the United States, which marked the end of Britain's maritime superiority and restricted Japan's military expansion plan.
Second, practical reasons.
1. From 193 1, Japan went to war with China, and Japan occupied the three northeastern provinces in 1932. From 194 1 year 1 year, Japan began to plan a sneak attack on Pearl Harbor to gain strategic advantages. After some discussions and disputes within the navy, the Japanese navy began to conduct strict training on this operation in the middle of the year.
2. The Japanese wars in China and Southeast Asia were subjected to oil embargoes and economic sanctions by the United States, Britain, China and the Netherlands. Japan cannot destroy and occupy the United States. It needs to win a local war and make the United States make concessions.
The Japanese side (at least temporarily) wiped out the main force of the US Navy in the Pacific Ocean, and at the same time, the Japanese side believed that such a sneak attack could hurt the morale of the American soldiers and civilians? .
Extended data
The result of the "attack on Pearl Harbor"
194165438+In the early morning of February 7 (Hawaii time), Japan raided Pearl Harbor, the main naval base of the United States in the Pacific Ocean, causing the main force of the United States Pacific Fleet moored in the harbor to be almost wiped out.
Japan attacked Pearl Harbor, losing 29 planes and 5 special submarines, sinking and injuring all 8 battleships, more than 20 other large ships and more than 20 small and medium-sized ships moored in the harbor, destroying about 180 American planes, killing more than 3,500 American soldiers, destroying and damaging most facilities in the harbor and on the island, and achieving remarkable results.
The American Pacific fleet was hit by this and completely lost its vitality. In the next six months, it had to hide in the sea and temporarily avoid the edge. Japan was once prosperous in Southeast Asia and the Southwest Pacific. However, it was precisely because of Japan's attack on Pearl Harbor that the United States firmly came to the forefront of opposing Japanese imperialism.