The USSR balked at China’s desire for a refund of money contributed to the Joint Institute of Nuclear Research (JINR) after it decided to pull out of the institute.

The Chinese Embassy in Moscow reports responses to the second Chinese nuclear test among Soviet news agencies, upper and middle class citizens, and students.

The Chinese Embassy in Moscow reports reactions from students and military personnel in the USSR to China's second nuclear test.

Cable from the Chinese Embassy in the Soviet Union describing positive responses of Soviet officials and the foreign missions regarding China's second successful nuclear test.

The Chinese Embassy in Tirana notes Albania's positive responses to China's successful nuclear test.

The Joint Institute for Nuclear Research discusses plans for scientific research and development from 1966 through 1970, and Chinese representatives announce their plan to withdraw from the Joint Institute on 1 July, 1965

Zhou Enlai criticizes the Three-Nation Treaty (Limited Test Ban Treaty) of 1963, arguing that it signifies an attempt by the US, UK, and USSR to monopolize nuclear weapons. Enlai warns that the agreement will allow larger nuclear countries to commit “nuclear blackmail” against smaller, non-nuclear countries.

Mao Zedong declares that, in the absence of Soviet assistance, China must rely only upon itself in its pursuit of technological modernity and socialism.

In the wake of a deepening Sino-Soviet split, Zhou Enlai explains how to manage Chinese bilateral technological and educational exchanges. Above all, Zhou emphasizes the importance of Chinese self-reliance in innovation and education as the country moves forward.

Nie Rongzhen reports to Mao on scientific and technical issues and Soviet assistance and cooperation in the area of nuclear development. The Chinese were becoming frustrated by what they called the Soviet "stranglehold" on key technical data, and led to an unwanted feeling of dependence on their Soviet comrades.