Upon his return, Volckmann began a new writing assignment, and, in 1951, FM 31-21 Organization and Conduct of Guerrilla Warfare was released.
帰国後、ヴォルクマンは再び教範作成の任務に割り当てられ、1951年には新しい対ゲリラ作戦教範『FM 31-21 Organization and Conduct of Guerrilla Warfare』が発行された。