Following the Third Reich's Anschluss, or political union, with Austria Hitler looked to Czechoslovakia for his next conquest. As a pretext for war the German media, under Goebbels direction, emitted a constant propaganda stream heightening tensions in the area by calling for protecting the German minority in Czechoslovakia. Goebbels agitations focused on the Sudetenland, a Czechoslovakian region running along the German border and home to most of Czechoslovakia's ethnic Germans.
Scandinavia took on ample significance to both Germany and Britain late in the winter of 1939-1940. The subsequent events in Scandinavian waters during the spring of 1940 would prove even more strategically significant following France's capitulation in June of 1940. The following will explain why.
Following the outbreak of the Second World War, a politically weakened Neville Chamberlain had brought one of his leading dissenters, Winston Churchill, into his cabinet as First Lord of the Admiralty; in an attempt to silence Churchill's politically damaging critiques of Chamberlain's leadership.