October 22, 1956
Memorandum from Khrushchev to Gomulka Recalling Soviet Advisors
Recalling Soviet military advisers from Poland.
April 21, 1981
Memorandum from John McMahon to the Director of Central Intelligence, '[Redacted] Report'
Translated correspondence between the USSR and Poland concerning the stationing of 66,000 Soviets troops in Poland as well as various exercises for attacks and natural disasters.