Sergey Moiseyenko, the Russian citizen, will serve a prison sentence of 10 years and six months for spying, unlawful possession of munitions, explosives and grenades.
Captain Sergejus Pusinas, the former Lithuanian Air Force Aviation Base officer, will spend five years behind bars.
The ruling by the Court of Appeals has taken effect, but it can still be appealed to the Lithuanian Supreme Court.
A Šiauliai court has established that Pusinas between 2012 and the end of 2014 collected information for Moiseyenko about Lithuania’s Armed Forces and operations of NATO air-policing missions, locations of military capacities, military operations in Afghanistan, intelligence aircrafts operated from remote locations, their flights and possible stationing locations.
According to the court, Russian intelligence also received copies of documents of the Lithuanian Defense Ministry and copies of personal files of some officers of the Lithuanian Air Force Aviation Base. Some of the documents were classified.
The pre-trial investigation was opened in December of 2014 after Lithuania’s military intelligence collected information about Pusinas having been recruited by Russia’s intelligence back in 2012. According to the case materials, Pusinas worked for the service by handing over information via Moiseyenko.