November 02, 1950
Ciphered telegram, S.E. Zakharov, Soviet Military Representative in Beijing, to Feng Xi (Stalin)
Telegram to Stalin reporting on the status--operational readiness and losses incurred--of North Korean air forces.
March 03, 1951
Ciphered Telegram from Filippov [Stalin] to Mao Zedong via Zakharov
Agreement to relocate two fighter divisions - division 151 and 324 - under the command of General Belov to cover the rear of the Sino-Korean forces, if they are able to leave two Chinese air divisions in Andun to protect the power and communications in the area.
March 15, 1951
Telegram from Stalin to Mao Zedong or Zhou Enlai, via Zakharov
Stalin proposes sending more Soviet fighter planes to aid Chinese and Korean troops.
April 12, 1951
Telegram from Vasilevsky and Shtemenko to Stalin
Reporting their considerations to deploy Belov's fighter aircorps.