Okay kiddo, let me explain to you about Japan's nuclear weapon program.
A long time ago, during World War II, Japan was in a war with other countries, including the United States. Japan wanted to have strong weapons, so they started working on a project to create their own atomic bomb.
They began building facilities and laboratories to carry out research on nuclear weapons. They also gathered many scientists and engineers to work on this project.
However, making a nuclear weapon is not an easy task. It requires a lot of materials, technology, and knowledge. Japan did not have enough resources to get what they needed, and the war was taking a toll on their economy.
Moreover, the United States had already developed and used atomic bombs on Japan, which caused severe destruction and loss of life. After seeing the damage, Japan realized the destructive power of nuclear weapons and decided to abandon their own project.
So in conclusion, Japan did not succeed in creating their own nuclear weapons due to limitations in resources and the devastation caused by the U.S. atomic bombs.