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Start Over Subjects Military Personnel ✖Remove constraint Subjects: Military Personnel Subjects Cooperative Behavior ✖Remove constraint Subjects: Cooperative Behavior Subjects United Kingdom ✖Remove constraint Subjects: United Kingdom Subjects World War I ✖Remove constraint Subjects: World War I Titles Are you in this? ✖Remove constraint Titles: Are you in this? Languages English ✖Remove constraint Languages: English Languages Russian ✖Remove constraint Languages: Russian Dates by Range 1900-1949 ✖Remove constraint Dates by Range: 1900-1949 Publication Year 1916 ✖Remove constraint Publication Year: 1916

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