September 11, 1949
Telegram from Gromyko to Tunkin at the Soviet Embassy in Pyongyang
The Soviet Union sends a set of questions to Kim Il Sung on about the South Korean army and North Korea's war plans.
September 14, 1949
Telegram from Tunkin to the Soviet Foreign Ministry in Reply to 11 September Telegram
North Korea plans to attack South Korea, but the Soviet Foreign Ministry is skeptical about North Korea's actual military capabilities and generally disproves of North Korea's plans.
September 15, 1949
Telegram, Shtykov to Stalin
A description of the political and economic situation in South and North Korea, and on the presence of the struggling democratic and reactionary forces and their influence among the people. Attached are three appendices on the combat and strength of the South Korean and the People's Army of North Korea, the amount of weapons in the People's Army, and the amount of ammunition in the People's Army as of August 1, 1949.
September 24, 1949
Politburo Decision to Confirm the Following Directive to the Soviet Ambassador in Korea
The Soviet Politburo argues that North Korea is not ready to launch a successful overthrow of the South Korean regime and suggests North Korea should concentrate its efforts on developing partisan groups in South Korea.
October 26, 1949
Draft Reply to Mao Zedong's Telegram from Stalin via Molotov
Stalin agrees with Mao Zedong that North Korea is not yet ready to launch an assault, and reports that the Soviet Union has told North Korea to concentrate on developing liberated areas and guerrillas in South Korea.
January 22, 1950
Cable, Liu Shaoqi to Chairman Mao [Zedong]
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.
January 31, 1950
Ciphered Telegram, Shtykov to Comrade Stalin
As a response to Stalin's willingness to talk to Kim Il Sung on the issue of offensive attack to South Korea and on Stalin's request of lead, Kim Il Sung, according to Shtykov, responded that he would like to set up a meeting with him, and that he would take necessary measures for the lead to be delivered to the Soviet Union.
February 23, 1950
Telegram from Shtykov to Maj. Gen. A.M. Vasilevsky, Head of Soviet Military Advisory group in DPRK
Telegram from Shtykov to Vyshinsky reporting the arrival of Lieutenant-General Vasiliev and the transfer of military adviser duties from himself to Gen. Vasiliev.
March 21, 1950
Ciphered Telegram, Shtykov to Vyshinsky
Shtykov reports on his meeting with Kim Il Sung where Kim Il Sung requests a meeting with Stalin in Moscow.
May 30, 1950
Cable Nos. 408-410, Shtykov to Vyshinsky (for the Politburo)
Terenti Shtykov reports on Kim Il Sung's military planning for an invasion of South Korea and signals Soviet approval for the invasion.
June 19, 1950
Current Capabilities of the Northern Korean Regime
This report assesses the capabilities of North Korea in reference to; the Soviet position, the current political, economic, and military situations, and the current operations against South Korea.
September 20, 1950
Telegram from Zhou Enlai to Ni Zhiliang
China approves of Kim Il Sung's idea of fighting a protracted war, and gives advice on military strategies that will make a protracted war possible.
September 21, 1950
Telegram from Soviet Defense Minister A.M. Vasilevsky to Stalin
Vasilevsky reports on the state of Korean fighter aviation regiments, damaged Soviet regiments in Korea, Korean maintenance crews and transport of battalions and munitions supplies to Korea, allowing Stalin to decide, pending further calculations, whether or not it would be logical to transfer aircraft to Pyongyang.
September 22, 1950
Information about the North Korean Workers Party Central Committee Meeting
Heo Gai discusses the possibilities of North Korea's turning to the Soviet Union and China for military support.
September 26, 1950
Ciphered Telegram from Matveyev (Zakharov) to Feng Xi (Stalin)
Telegram from Zakharov to Stalin detailing the dire situation for the North Koreans following the Incheon landing.
October 01, 1950
Telegram from Zhou Enlai to Kim Il Sung
China advises Kim Il Sung to have the North Korean armies retreat north of the 38th parallel as quickly as possible after the First Front Army was cut off by the opposing side.
October 02, 1950
Telegram from Zhou Enlai to Ni Zhiliang
Zhou Enlai notifies Ambassador Ni Zhiliang about the estimated arrival of Pak Il-u and advises Kim Il Sung to order the troops that were cut off by the opposing side and have no way to retreat to persist in guerrilla actions where they are.
November 08, 1950
Telegram from Zhou Enlai to Chai Junwu, Peng Dehuai, and Gao Gang
Zhou Enlai attempts to arrange a meeting between Kim Il Sung and two Chinese leaders, Peng Dehuai and Gao Gang, to discuss military operations and arrangements.
November 17, 1950
Telegram from Mao Zedong to Peng Dehuai
Mao Zedong informs Peng Dehuai and Gao Gang that Stalin has approved of a single central command led by the Chinese, and that they are now waiting to see how Kim Il Sung will respond.
December 08, 1950
Draft Agreement by the Party Central Committee on Establishing a Sino-North Korea Joint Headquarters
The agreement establishes a Joint Headquarters between the Chinese and North Korean sides that will command the North Korean People's Army, the Chinese People's Volunteer Army, and all guerrilla forces, and details the leadership and specific powers and operations of the Joint Headquarters.