A detailed wartime history and eyewitness account of the American expeditionary force's campaign in North Russia in 1918–1919, chronicling organization, troop movements, frontline engagements with Bolshevik forces, logistical challenges, harsh climate, and the toll of combat, disease, and exposure. The narrative combines official reports, officers' recollections, maps, and illustrations to reconstruct battles, defensive operations, and small-unit actions, while documenting interactions with local populations, medical evacuations, and commendations. Chapters examine command decisions, supply and transport difficulties in forested terrain, and the human cost among soldiers, concluding with assessments of the campaign's outcomes and lessons learned.