Th e State boundary between Republics of Lithuania and Byelorussia forms part of the external European Union (EU) boundary. Demarcation of this boundary is very important step to the enforcement of use of correct tactics and regime for protecting the external boundaries of EU. State boundary demarcation process has taken 10 years from the date of the Agreement for the state boundary demarcation between Republics of Lithuania and Byelorussia, which has been agreed and signed by the Presidents of the Republics of Lithuania and Byelorussia and ratifi ed by the Parliament (Seym) of the Republic of Lithuania in 1996. Final state boundary demarcation documents between Lithuania and Byelorussia were prepared and signed by joint Demarcation Commiss...