Leaked Pentagon documents detail U.S. dismay at military and technological developments in China.

The documents include an analysis of the widespread risks posed by China, including Beijing's willingness to send lethal aid to Russia. Documents also included details of a newly approved Chinese warship, the launch of missile tests in March, and launch of two satellites expected to enhance Beijing's military mapping, monitoring and eavesdropping capabilities. One of the leaked documents reveals that a Ukrainian attack on Russian territory using weapons provided by NATO countries could drag Beijing into war.