May 13, 1950
Ciphered Telegram, Roshchin to Cde. Filippov [Stalin]
The telegram relays a request from Mao, conveyed via Chinese Foreign Minister Zhou Enlai, seeking Stalin’s “personal clarifications” of his stand on a potential North Korean action to reunify the country. Mao sought the information after hearing a report from Kim, who had arrived that day in the Chinese capital for a secret two-day visit and clearly claimed that he had received Stalin’s blessing.
May 13, 1950
Telegram from Zhou Enlai to Nikolai Bulganin
Zhou Enlai presses Moscow to accelerate the dispatchment of requested equipment and personnel by the specified deadline so that the Chinese air force and navy can prepare for the military campaign to seize Zhoushan Island.
May 14, 1950
Ciphered Telegram No. 8600, Vyshinsky to Mao Zedong
The cable contains Stalin’s personal response to Mao's 13 May telegram. Using the code-name “Filippov,” Stalin confirms his agreement with the North Korean proposal to “move toward reunification,” contingent on Beijing’s agreement.
May 16, 1950
Telegram, Filippov [Stalin] to Mao Zedong via the Soviet ambassador
Stalin notifies Mao Zedong that he believes the signing of a treaty pact between China and North Korea should only come after Korean reunification.
June 30, 1950
Cable No. 21340, Mao Zedong to Filippov [Stalin]
Mao asks Stalin to make sure that Kim Il Sung knows that he must agree to conduct negotiations to cease hostilities, and to decide the time, place, and number of participants for these negotiations. Mao continues to give his advice as to what the best place and time would be for these negotiations (place, on the 38th parallel; and time, 15 July, 1950).
July 02, 1950
Incoming Cable No. 19413, Roschin to the Central Committee
Roschin tells the CC of his meeting with Zhou Enlai, in which they discussed talks with the Indian ambassador over maneuvering at the UN, and over the possibility of Chinese intervention in Korea against American forces.
July 05, 1950
Ciphered Telegram No. 3172, Stalin to Zhou Enlai via Roshchin
A telegram from Stalin to Zhou Enlai with regards to India's mediation in the PRC's entry into the UN, Chinese troop movements in preparation for a possible Southern/Allied counterattack, and Soviet planes flying over Manchuria.
July 05, 1950
Telegram from Flippov to Mao Zedong and Zhou Enlai
Stalin informs Mao Zedong that Chinese armed forces should be stationed on the border with North Korea as a precaution against enemy forces crossing the 38th parallel.
July 08, 1950
Ciphered Telegram No. 3231, Filippov (Stalin) to Soviet Ambassador Roshchin
Telegram from Stalin to Beijing advising that they send a representative to Korea.
July 11, 1950
Telegram from the Chinese Communist Party Central Committee to Gao Gang
Due to the Korean situation, the Soviet government requests the use of air and railway transport through China, to which the Chinese side agrees.
July 13, 1950
Ciphered telegram, Filippov (Stalin) to Zhou Enlai or Mao Zedong (via Roshchin)
Telegram from Stalin to Mao and Zhou Enlai detailing his response to the English protest concerning "the Korean question." Also, a request for confirmation of Chinese troop movements to the Sino-Korea border, in case of a repulse of North Korean forces. Finally, a confirmation of the plans to train Chinese pilots on Soviet jets, to be followed by the transfer of the jets to Chinese possession.
July 25, 1950
Ciphered Telegram No. 13645 from Vyshinsky to Roschin
Telegram relaying message from Stalin to Mao and Zhou Enlai agreeing with proposal to train Chinese pilots on Soviet jet planes.
August 27, 1950
Letter from Filipov (Stalin) to Soviet Ambassador in Prague, conveying message to CSSR leader Klement Gottwald
Stalin lists the reasons for the Soviet withdrawal from and the return to the United Nations Security Council.
September 20, 1950
Cable, Gromyko to the Soviet Ambassador, Peking
Cable explaining that China and the Soviet Union are getting incomplete information from North Korea. Also discussing how North Korea is doing militarily and China's admission into the UN.
October 01, 1950
Ciphered Telegram, Filippov (Stalin) to Mao Zedong and Zhou Enlai (via Roshchin)
Telegram from Stalin to Mao and Zhou Enlai asking that they consider moving 5-6 divisions of Chinese volunteers to the China-DPRK border in order to give the North Koreans cover under which to reorganize their troops. Stalin explicitly states that he will not mention this idea to the North Koreans.
October 03, 1950
Ciphered Telegram from Roshchin in Beijing to Filippov (Stalin)
Telegram to Stalin from the Soviet Army General Staff on combats with the US.
October 08, 1950
Telegram from Mao Zedong to Filippov (Stalin)
Mao informs Stalin that the Chinese volunteers could cross into Korea by October 15.
October 08, 1950
Letter from Feng Xi (Stalin) to Kim Il Sung (via Shtytkov)
Stalin sends Kim a copy of his October 1950 letter to Mao Zedong. Stalin describes the US inability to engage in a "big war" and encourages Kim in his fight against the US.
October 11, 1950
Cable No. 4785, Filippov [Stalin] and Zhou Enlai to the Soviet Ambassador in Peking
Instructions for the Chinese army in light of the fact that the Chinese forces designated to assist Korea are not ready.
October 12, 1950
Ciphered Telegram No. 25553, Roshchin to Filippov [Stalin]
Mao Zedong has already given orders to halt Chinese troops preparing to cross the Korean border.