Title: Taĭnai͡a voennai͡a razvi͡edka i borʹba s neĭ
Subjects: Intelligence service, World War, 1914-1918, Secret service, Intelligence officers, Biography, History, Military, Espionage, Military art and science
Places: Russia, Soviet Union
People: Nikolaĭ Stepanovich Bati͡ushin (1874-1957)
Time periods: Revolution, 1917-1921