Title: Armii︠a︡ na Oktomvriĭskata revoli︠u︡tsii︠a︡
Subjects: History, Military art and science, Soviet Union. Armii︠a︡, Bulgaria. Bŭlgarska narodna armii︠a︡, Soviet Union. Raboche-Krestʹi︠a︡nskai︠a︡ Krasnai︠a︡ Armii︠a︡