Bulgarian Ambassador to Cuba Stefan Petrov analyzes Cuba’s domestic and foreign policies in an informational report to Bulgarian leader Todor Zhivkov. Petrov criticizes Cuban Communist Party policies and claims they are incompatible with Marxism-Leninism (e.g. Cuba’s focus on conflict between imperialism and national liberation rather than socialism and capitalism). Cuba has adopted an anti-Soviet attitude and believes Cuban leadership is the vanguard of communism. Petrov reviews Cuba’s conflicting relations with Latin American communist parties and Cuba's support to guerilla movements in the region. Petrov notes that Bulgarian-Cuban relations remain positive.

Soviet Foreign Minister Andrei Gromyko cables the Soviet Embassy in Havana that the Soviet leadership had decided to allow UNSG U Thant and his representatives to visit Soviet launchers sites in Cuba and verify that the launchers are being dismantled.

The ambassador gives an assessment of the Cuban domestic and foreign policy. He characterizes Fidel Castro as an adventurer and points to certain communist party decisions that are incompatible with the Marxist-Leninist doctrine.