Norway: Norway was invaded by the Allies and the Axis Powers in World War II. Norway is relatively close to the British mainland, and shore-based aircraft can directly cause damage to the British offshore waters, and Norway’s unique fjords The terrain has also become a natural harbor for the navy. Finally, Norway is located at the mouth of the Strait of Jutland, which is an important chokepoint for the German iron ore sea transportation line. Therefore, Norway has become a strategic location for the Allies and the Axis Powers to compete for. In 1940, Germany launched Operation Wesser and occupied the entire territory of Norway after a firefight with the United Kingdom.

Denmark: After the start of Operation Wessey, the King of Denmark announced his surrender, and Denmark became a puppet state of Germany. Denmark also During World War II, Germany had the least control among all German puppet states. Germany gave Denmark full freedom.

Sweden: Sweden remained neutral during World War II, but actually maintained a friendly neutrality policy toward the Axis powers. Sweden Despite British pressure, it still exported a large amount of iron ore to Germany and maintained close economic and trade relations with Germany. In the Barbarossa Plan, Sweden gave Germany military access rights, so Germany could cross Sweden from Norway and directly enter Finland and the Soviet Union. Combat.

Finland: Finland was invaded by the Soviet Union in 1939, known in history as the Soviet-Finnish War or the Winter Campaign. The sequelae caused by the Great Purge were fully exposed in the Soviet-Finnish War, and the Soviet army struggled to achieve success. It took only 3 million people to defeat Finland, which had a population of only 3 million. Finland joined the Axis camp in the Barbarossa Plan and declared war on the Soviet Union together.