The Chinese Government endorses a proposal by the Soviet Union for the USSR, the US, and the UK to halt nuclear weapons tests.

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.

Cable from the Chinese Embassy in Vietnam entails positive responses of Le Duan, Pham Hùng and Ly Ban regarding China's first testing of an Atomic Bomb.

Gromyko informs Liu Xiao of the Soviet position and strategy in its negotiations with the United States and the United Kingdom for halting nuclear tests.

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

The Soviet Central Committee informs their Chinese counterparts that, in light of the arms reduction talks taking place in Geneva, Soviet nuclear assistance must cease. The Chinese had requested a sample atomic bomb and technical data, but the Soviet feared that doing so would imperil the efforts of the socialist countries in Geneva.

Khrushchev writes to Zhou outlining the Soviet Union's argument for the need to halt the testing of atomic weapons, and urges the Chinese to support and agree to the ban.