On 17th January the US Central Intelligence Agency released approximately 800,000 declassified documents, totalling almost thirteen million pages. These are now available online at the CIA Library's website. Most of the released documents were already public; however, their accessibility was limited as they were kept in the National Archives in Maryland. Many of the released materials from the period dating from 1947 to the 1990s refer to former Czechoslovakia. One unevaluated information report from March of 1954 suggested that the army had short range battlefield nuclear weapons based in Eastern Slovakia. Citing from the document:
Reports from the Slovak garrison town of Košice indicate that the Czechoslovak Army has now, for a short time only, come into possession of an atomic field gun. The gun is reported to be of medium caliber and smaller than the American atomic field pieces now actually in Germany.
The report also implies that secret firing tests took place in the narrow passes of the Carpathian Mountains in the presence of Soviet experts. The documents released by the CIA are mainly the records of intelligence agencies and investigative studies but also include reports on alleged paranormal activity.