It is not possible to give a definitive answer to this question at the moment. However, we can try to analyze the situation in light of some information. First of all, we know that China has nuclear weapons capability. It is estimated that the country has about 350 nuclear warheads. Although this number is considerably less than the US stockpile of nuclear weapons, it still constitutes a significant deterrent force.

On the other hand, China's official policy is based on the principle of "No First Use". This principle commits China not to be the first to use nuclear weapons. However, there have been recent reports of some changes in China's nuclear doctrine. These changes are thought to be aimed at increasing deterrence against the US nuclear threat.

So, in light of this information, can we say that China is planning a nuclear attack against the US? It is difficult to say for sure. However, the current tensions and the escalation of the nuclear arms race make this possibility too dangerous to be ruled out.

At this point, the international community has a huge task. The channels of diplomacy and dialogue must be urgently opened and this tension must be resolved peacefully. The consequences of a nuclear war would be devastating for the entire world. Therefore, all countries must act responsibly and take the necessary steps to prevent the use of nuclear weapons.