PFC Berger W. Bergstrom was a member of Company A, 310th Engineers, 85th Division, U.S. Army. His unit was a part of the American North Russia Expeditionary Force (a.k.a. "Polar Bears") which fought against the Bolshevik Red Army from Sept. 1918 through May 1919 in the region surrounding Archangel, Russia.
Per Bulletin No. 30 issued on Feb. 3, 1919 by the "HQ, U.S. Troops in Archangel, Russia", on Dec. 18, 1918, Pvt. Bergstrom was awarded the British Military Medal by the Commander-in-Chief of the Allied Forces, North Russia (British Major General Edmund Ironside), "for gallantry in action and services rendered by American personnel operating with the DVINA Force." According to Pvt. Bergstrom's military record, his British Military Medal was awarded for conspicuous gallantry at Tulgolsk (Tulgas), Northern Russia on Oct. 21, 1918 and also for heroism displayed at the second battle of Tulgolsk (Nov. 11, 1918) in which he repeatedly crossed an area swept by machine gun and sniper fire to deliver messages.
(B.W. Bergstrom photos and documents courtesy of his great grand-niece, Karyna Sitkowski; photo of Bergstrom burial site courtesy of Jeanne A. Lenz, accessed at http://www.usgwarchives.net/mi/manistee/photos/tombstones/maplegrovetwp/bergstro68920gph.jpg )