Well, NKVD troops was a military force assigned the NKVD's control for specific tasks, not to just instill fear etc. These tasks bu June 1941 includedVolyn wrote: ↑18 Aug 2019 14:50Most of the time their function would be boring, but the organization did instill fear among everyone (soldier and civilian) as a result of their reputation for what they were capable of, how can that be doubted? The psychology of fear was an instrument that Beria and Stalin used to great affect on their own forces and everyone else.
- security of state border, arrest of intruders illegally crossing the borders, intelligence in the border region
- security of railroads
- security of the most important industrial objects (factories, electric stations)
- security of prisons, convoying arrested from prisons to courts, convoying convicts to penitentiary system
- convoying POWs to captivity, security of POWs camps
- security of governmental and administrative objects, signal centers etc
- fighting insurgency, banditism, maintenance of public order in general
Accordingly by the start of the war NKVD troops were organized as several branches:
- border troops
- railroad security troops
- industry security troops
- convoy troops
- operative troops
also military schools, depots and supply system
Details on organization in 1941 can by found here:
viewtopic.php?f=79&t=212335&p=1920831
After the war start the tasks assigned to the NKVD military forces tended to expand which corresponded to their own expansion and formation of additional branches. And again, apart from the regular military force, there were also various militarized and paramilitary organizations subordinated to the NKVD which has tasks of their own.