Due to the difficulties of guerrilla warfare, as well as for tactical reasons, the territorial units' boundaries changed, so, depending on the case, they operated in one county, a part of thereof, or several neighboring counties.[1] Sometimes territorial units were transferred from one military district to another.[1] Territorial units, thought not all, published their own press.[1]
Beginning
The first territorial units were formed in Southern and Eastern Lithuania at the end of 1944.[1] At the beginning of the partisan war in Lithuania, some territorial units formed and operated independently (e.g. Perkūnas, Deer, Vytautas in the Tauras military district).[1]
Territorial units differed in the number of fighters (from roughly 50 to about 200 people).[1] Sometimes, they were 700-strong.[2] They were active anywhere from several to 8 years.[1]
Command
The military district's commander appointed the territorial unit's commander.[1] The people chosen were either staff officers or distinguished commanders of companies or other formations.[1] Generally, these were Lithuanian army officers and school teachers.[1]
List of territorial units
The following territorial units were active at various times:[1]
^After the Battle of Pyragiai, Weasel Territorial Unit was renamed to Boar TU from August 1946.
From November 1946 to June 1947 – Volunteer's TU.
From July 1947 to January 1948 – Book smuggler's TU.
From February 1948 to March 1949 – Amber TU.
From April 1949 to late 1951 – Birutė TU.