The new doctrine is designed to be ready for potential threats not only from Russia but also from China and the DPRK. This was reported by zamon.uz here.
The reason for this is the increase in the number of nuclear arsenals in Beijing and Pyongyang in recent years.
The documents are so classified that they have been presented in paper form and in a very limited quantity only to several military leaders of the Pentagon. The newspaper did not reveal its sources, but added that after Biden's term ends (until January 20, 2025), it will inform Congress about the change in nuclear strategy.