During Friday's phone call between Polish and Lithuanian Prime Ministers, security, strengthening defense, and joint infrastructure projects dominated the discussion.

Mediaeval European rulers’ hidden royal treasures since World War II have been rediscovered in Lithuania.According to CNN, royal treasures hidden for more than 85 years have been unearthed in Lithuania.

GPS signal interference forces a Ryanair Boeing 737 landing in Vilnius, Lithuania to divert to Warsaw in Poland.

The items included the funerary crown of Alexander Jagellion, King of Poland and Grand Duke of Lithuania between 1501 and 1506.

A Ryanair plane about to land at Vilnius airport was diverted to Warsaw in Poland on Thursday because of GPS interference, Lithuania's air navigation authority said on Friday.

VILNIUS - Defense investments by Lithuania and Poland must set an example for allies, Lithuanian Prime Minister Gintautas Paluckas said after a phone conversation with his Polish counterpart Donald Tusk on Friday.

Researchers inspecting the cracks and cavities in the walls of Vilnius Cathedral have uncovered a handsome trove of royal jewelry.

Lithuania’s president says his country has made the decision to raise its spending on defense to between 5% and 6% of overall national economic output starting in 2026

Royal burial crowns and insignia, belonging to medieval European rulers, have been unearthed from Vilnius Cathedral after 85 years.

A special gala is scheduled for Wednesday evening at the Lithuanian National Philharmonic, featuring one of Poland's most talented pianists, with accompaniment from the Lithuanian National Symphony Orchestra.

As heads of state arrive at the NATO summit in Vilnius, Lithuania, CNBC speaks to Spanish Prime Minister Pedro Sanchez, Prime Minister of Lithuania Krišjānis Kariņš, President of Poland Andrzej Duda,

Lithuania plans to dramatically increase defense spending to 5-6 percent of its GDP by 2026, citing the persistent threat of Russian aggression