Bulgarian Charge d’Affaires in the US Kiril Shterev reports to the Bulgarian Ministry of Foreign Affairs that US Deputy Secretary of Defense Roswell Gilpatric stated that three submarines carrying Polaris missiles will be deployed to the Mediterranean Sea. The deployment follows US withdrawal from Italian and Turkish bases after the Cuban Missile Crisis.

Bulgaria's Charge d' Affaires to the US Kiril Shterev writes to the Bulgarian Ministry of Foreign Affairs explaining that the US planned on stationing B47 bombers in Turkey once the Jupiter missiles are removed from Turkey. Shterev cites journalist Paul Scott as his source for the information about the display of the Unites States' military presence.

In his cable to the Bulgarian Foreign Ministry, Ambasador Kiril Shterev reports information about expected US assistance to Greece in 1963. Shterev acquired the information during lunch with the Greek Charge d' Affaires, Counselor Kalougeras. Kalougeras also mentioned Turkey's possible entrance into the European Economic Community and inquired about US-Bulgarian relations.

The Bulgarian diplomatic mission (legation or embassy) to the US reported to the Bulgarian Ministry of Foreign Affairs in Sofia what actions the embassy executed and planned to execute to prevent seizure of documents during the "international situation," or Cuban Missile Crisis. Enclosed in the letter is an explanation of items destroyed and items placed under heightened security. The letter also includes information about security for the embassy staff.