The Bolsheviks seized power in Moscow and, on March 3, 1918, signed a peace deal with Germany. The pact allowed Germany to focus on the Western Front. The Bolsheviks, led by Vladimir Lenin, turned to defending their revolution from White Russians, supporters of czarist rule who were backed by the British and French.
In the late summer and early fall of 1918, President Woodrow Wilson added some 5,300 American soldiers to that volatile mix, sending them to northern Russia with vague and contradictory orders.
This account of the 1918 Archangel campaign is based on century-old military records, declassified government memos, personal letters, diaries, photos and film in the National Archives and Records Administration, and the Bentley Historical Library at the University of Michigan, as well as soldiers’ memoirs.
https://www.wsj.com/articles/the-one-time-american-troops-fought-russians-was-at-the-end-of-world-war-iand-they-lost-1541772001
