State Transport Special Service

State Transport Special Service (Ukrainian: Державна спеціальна служба транспорту; abbrev: ДССТ, DSST) is a specialized military unit that is a part of the Ministry of Defense and was created to guarantee the reliable operation of transportation during special occasions and times of peace. The structure of the military formation was altered in compliance with revisions made to the Law of Ukraine "On the State Special Transport Service" at the end of 2017; the previous combined and independent units were restructured into brigades, regiments, and separate battalions.

Source: Wikipedia — State Transport Special Service (CC BY-SA 4.0)