What was the main reason why the Japanese army was defeated in the Pacific War during World War II?

From 65438 to 0940, the United States and Britain began to impose sanctions on Japan. At that time, 80% of Japan's oil, 93% of its copper and 74% of its iron came from the United States. Another important oil producing area-Nanyang Oilfield (including Malay Peninsula, Brunei and Borneo, Indonesia, etc.). ) controlled by British and Dutch locks.

Reason for failure:

1. 194 1 When the Pacific War broke out, the GDP of the United States was seven times that of Japan.

The population of the United States is twice that of Japan, and the total number of educated people and the population base that can operate cars and machinery are much higher than that of Japan. In the Pacific battlefield, Japan has been unable to make up for the vacancy of pilots after a large number of experienced pilots died at the beginning of the war.

As an island country, all the wars that Japan fought before were "the first battle that decided the outcome". In other words, Japan always relies on a key battle to completely defeat the other side and win. Therefore, in World War II, the war against China and the Pacific War, we have been looking for decisive opportunities to defeat our opponents' elite troops and force them to surrender, thus solving all problems. However, this decisive battle strategy does not work at all for the United States, which has a strong logistics supply force.

3. There are great differences in weapons and equipment.