They had originally had an agreement with the USSR that the USSR would provide them with atomic bombs. However when the USSR failed to do that, China decided they had to make the bombs themselves.
Because the USSR withdrew support for reactor projects in China in 1959.
China is not a nuclear free zone. They have many nuclear weapons. Though China has a nuclear policy which states that they are not allowed to produce,fire, or give away these weapons.
Of course.
Yes, because China has nuclear power plants and nuclear weapons.
Yes
Around 400 nuclear warheads. China has the third largest nuclear arsenal in the world.
12, 250 China has the 2nd largest nuclear arsenal in the world.
Originally the USSR was assisting them with reactors and was promising to supply nuclear weapons if needed, so China would not have to develop their own. However the USSR withdrew from this agreement in 1959. This caused China to begin their own nuclear weapons project, culminating in their first test in 1964. So nobody assisted China to develop nuclear weapons. They did it on their own.
By 1960 the US, USSR, UK, and France had nuclear weapons. China got them in 1964.
Many countries have nuclear weapons today including the United States. China, North Korea, South Korea, and Japan also have nuclear weapons.
NO! Nuclear weapons don't make and detonate themselves
Japan doesn't want any nuclear weapons.But Japan can easily produce nuclear weapons if it wanted to. It has the technology to build nuclear weapons within 1 year-- probably a few months if it wanted.However, most Japanese people are against nuclear weapons. Therefore, they do not have nuclear weapons.