The Winter War was fought in the four months following the Soviet Union's invasion of Finland on 30 November 1939. This took place three months after the German invasion of Poland that triggered the start of World War II in Europe. Sweden did not become actively involved in the conflict, but did indirectly support Finland. The Swedish Volunteer Corps provided 9,640 officers and men. The Swedish Voluntary Air Force also provided 25 aircraft that destroyed twelve Soviet aircraft while only losing six planes with only two to actual enemy action and four to accidents. Sweden also provided a portion of the weapons and equipment used by the Finns throughout the war.
