Proposed text of a letter from Nikita Khrushchev to Mao Zedong, reiterating Soviet support for the People's Republic of China in the event of a nuclear attack on the PRC.

This working document shows four different working drafts of negotiations of Article 4, which related to reduction of armed forces at the Sino-Soviet border.

This document discusses lessons learned from dealing with the Chinese in the previous two rounds of negotiations regarding the reduction of military presence at the Sino-Soviet border and the plan to jointly produce a draft general agreement on the issue.

This internal document discusses plans for Sino-Soviet negotiations beginning in September of 1990, detailing regions to be discussed, military information which can be shared going forward, and ideas to be presented to Chinese counterparts.

Minutes from a meeting on Sino-Soviet efforts at defense planning and collaboration. Chinese defense officials looked for Russian help in the production of guided missiles, and the document illustrate their efforts to collaborate in the education and preparation of specialists, the staffing of military research institutes, the construction of defense-related factories, and the sharing of technology.

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.

In a conversation with Soviet ambassador Yudin, Mao sees a prohibition of the use of hydrogen weapons as very likely, as the capitalist countries "[fear] fighting this kind of war." Further, he notes that the socialist countries have an advantage over Western ones in terms of conventional army size.

A memorandum from the Soviet government to the Chinese updating them on the arms reduction talks, a key component of which was a prohibition of the testing of atomic and hydrogen weapons. The Soviet proposal also called for reductions in conventional weapons and the prohibition of installing nuclear weapons outside their territorial borders.