premise: Evgeny Messner (Russian: Евгений Эдуардович Месснер , German: "Eugen Messner" ; 1891–1974) was a Russian professional soldier and military theorist.
hypothesis: Evgeny Messner Russian : : Евгений Эдуардович Месснер, German : : " Eugen Messner " : ; 1891–1974 was a Russian professional military theorist.