The history and basic information on the 164th and the 166th Divisions of the People's Liberation Army, or the divisions composed mainly of ethnic Koreans.

A telegram from the leader of the group of Soviet specialists in Northeast China to the Chairman of the USSR Council of Ministers about the results of Chinese-Korean talks on military cooperation.

Lin Biao and others ask for instructions on whether to send ethnic Korean officers and soldiers to North Korea.

A list of letters of support from China received by the North Korean government during the Korean War.

To the question of whether to send back the ethnic Korean officers back to Korea, the Central Military Commission answers in the affirmative and writes that CMC has already asked for Korean officers to come to China to reorganize the troops and bring them back home.

China asked three representatives from DPRK to prepare to receive the ethnic Korean troops.

Liu Shaoqi reports to Mao Zedong that the ethnic Korean officers have arrived to bring back the ethnic Koreans to Korea. To the request of the North Korean officers in bringing back the weapons ethnic Korean officers had used, Mao responds in the affirmative.

In a discussion between Mao Zedong and Ri Ju-yeon, Mao expresses a positive attitude toward China-North Korea relations, though indicates he is unaware that Kim Il Sung was then in the Soviet Union.

Shtykov reports of a meeting with Kim Il Sung, in which Kim Il Sung tells Shtykov the questions he means to ask Mao Zedong in a following meeting in Beijing the next day.

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.

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 assent.

Stalin notifies Mao Zedong that he believes the signing of a treaty pact between China and North Korea should only come after Korean reunification.

A Chinese Foreign Ministry report on the management of Korean nationals living in China during the Korean War.

Telegram from Stalin to Beijing advising that they send a representative to Korea.

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.

The Chinese attempt to mobilize the ethnic Koreans living in northeast China to return and serve North Korea in the war.

Zhou Enlai and Nie Rongzhen suggest methods to solve the problem of supply and improve coordination in the army command in the northeast China region.

Mao Zedong informs Stalin of China's military and strategic maneuvers in summer 1950 as a result of the Korean War.

Telegram relaying message from Stalin to Mao and Zhou Enlai agreeing with proposal to train Chinese pilots on Soviet jet planes.

North Korea requests train locomotives and air force pilots from China, to which China agrees to the train locomotives.