The Army of Night is Baba Yaga's main contingent of vampires. They further her political goals and carry out her city-based operations. They also help patrol the Shadow Curtain by controlling the red tape process needed to get over the border.
The Army is composed of nearly 25 vampires and is lead by Viktor, a powerful Gangrel who allows no room for error in himself or others. Viktor was a servant of Baba Yaga before she entered torpor, and his continued loyalty to her has earned him a special position in the eyes of the Hag. His loyalty is unquestioned and unquestioning. Rumor has it that he ripped his own childe apart for failing to show the proper respect for Baba Yaga in her absence.
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Rage Across Russia, p. 91