"The "American Intervention in Northern Russia, 1918-1919," nicknamed the "Polar Bear Expedition," was a U.S. military intervention in northern Russia at the end of World War I." Not to mention there were a few other countries involved as well... Contains primary sources and images.
The "American Intervention in Northern Russia, 1918-1919," nicknamed the "Polar Bear Expedition," was a U.S. military intervention in northern Russia at the end of World War I.