Montenegrin Fascist Militia for Internal Security (Italian Empire)

The Montenegrin Fascist Militia for Internal Security (Montenegrin: Црногорска Фашистичка Милиција за Унутрашњу Безбедност, Ц.Ф.М.У.Б. Crnogorska Fašistička Milicija za Unutrašnju Bezbednost, C.F.N.U.B.; Italian: Milizia Montenegrina Fascista per la Sicurezza Interna, Mi.Mo.F.S.I.) is the Fascist volunteer/reserve militia in charge for supporting State institutions of the Principality of Montenegro.

The Montenegrin Fascist Militia for Internal Security operates a contingent of 3,000 reservists who may be called to arms in order to support Montenegrin Police and Montenegrin National Princely Guard.

Due to the reduced size and the recent date of establishment, the Montenegrin Fascist Militia for Internal Security is framed within the M.V.S.N. as an autonomous Legion.