VSAT is a member of the EU Frontex and is responsible for the security of about 1,070 kilometres (660 mi) of the external border of the European Union with Kaliningrad Oblast (exclave of Russia) and Belarus.

On 26 January 1922, the Lithuanian defence minister, Jonas Šimkus, issued an order designating 29 June as Border Regiment Day.

[citation needed] This strength was maintained until June 1940 when the Soviet Union invaded and occupied Lithuania.

On 10 September 1990, the Government adopted a resolution with a view to forming services at the Ministry of Defence that were to ensure the economic protection of the Lithuanian borders.

When the last Soviet soldier left Lithuania on 31 August 1993, the State Border Guard Service was already well established.

It required a considerable diplomatic effort to conclude and sign a treaty on the state border with Belarus on 6 February 1995.

[2] The treaty on delimitation of the state border between Lithuania and the Russian Federation was signed during a summit in Moscow on 24 October 1997.

[2] When preparing for the re-organisation, a large number of legal acts were adopted which regulate the activity of the State Border Guard Service.

In 2024, taking into account the lessons from the Russian invasion of Ukraine, the government decided to equip the border guards with the heavy weapons.