The Baltic Defence Line (Estonian: Balti kaitsevöönd,[1] Latvian: Baltijas aizsardzības līnija, Lithuanian: Baltijos gynybos linija) is a planned joint defense line by Estonia, Latvia and Lithuania along their borders with Russia and Belarus.

[6] According to Baiba Braže, the Foreign Minister of Latvia, the Baltic Defence Line could take up to a decade to be completed.

[7] The Baltic Defence Line is planned to consist of anti-mobility defensive installations,[8] such as at least six-hundred bunkers across each individual national border,[note 1] the usage of natural and artificial obstacles, such as forestry and rivers, and anti-tank ditches along the borders of the three Baltic states.

[6][9] It is suspected that M142 HIMARS artillery rocket systems also are to be used for defensive capabilities.

[11] At the 2022 NATO Summit in Madrid is where the concept of defensive installations were decided.