On 5 July 1963 the Bulgarian Ministry of Internal Affairs completed an information report on NATO's activity during the Cuban Missile Crisis. In the report, the ministry outlines detailed espionage carried out by NATO agents. According to the report, the NATO Military Intelligence Services provided instructions for NATO member-states' military attaches stationed in Warsaw Pact countries and agents they could get to cooperate with them. Agents were to observe and report specific military intelligence collecting in Warsaw Pact countries -- arms deliveries, missile sites, military movements, etc. The report also includes explanation of how the attaches carried out their intelligence gathering -- reading official press, speaking in Russian and misrepresenting themselves as Russian, etc . The Bulgarian Interior Ministry notes that Western governments were well-informed of Bulgarian military structures -- including exact formations and secret designations.

Bulgarian intelligence report on the developments during the 1958 Lebanon crisis.

A report focused on the Turkish and Greek intelligence activities in Bulgaria. The report outlines the major areas of interest – the Bulgarian military infrastructure, economic development, and the Communist party leadership. The report also talks about the role of the Turkish diplomatic representatives in encouraging repatriation of Turkish-Bulgarians to Turkey.

The Ministry of Internal Affairs reports its intelligence findings on the military cooperation between the US, Greece and Turkey.

The Ministry of Internal Affairs reports its intelligence findings on the activities of the Yugoslav intelligence services against Bulgaria. Working both from home and in-country, the Yugoslav intelligence is allegedly trying to gather information on a broad set of issues – ranging from trade relations within Comecon, to Bulgaria’s military capacity and its potential to pose a threat to Yugoslav Macedonia.

A report on the state of bilateral relations with emphasis on military co-operation and the US mediation of the Greco-Turkish disputes.