The so-called Polar Bear Expedition (also known as the Northern Russian Expedition) was the involvement of U.S. troops, during the tail end of World War I and the Russian Revolution, in fighting the "Bolsheviks" in Arkhangelsk, Russia in 1918 and 1919, despite having been sent there on the pretext of halting a German advance on the eastern front of the war.

External link

• Polar Bear Expedition (http://www.umich.edu/~bhl/bhl/mhchome/polarb.htm)