Why did Denmark join WW1?

Who was US President at beginning of the Cold War? What efforts were taken to demobilize women after World War 2? The face of the American workforce changed dramatically after World War 2 .what was the factor of the change? What is a system in which a central power controls a number of territories? What country or countries attacked revolutionary france on land from the south? When was Reich Ministry for the Occupied Eastern Territories created? What does Mint marks on the 1917 quarter mean? Which statement best summarizes Russia's experience on World War 1's Eastern Front? When were satellite nations formed? Why did Civil War break out in Rome? Which battle was the star spangled banner written about? Where was the battle site in Animal Farm? Was the hydrogen bomb used in a war? Why did Spartans develop such a rigid and militaristic society? What was the underlying cause for the growing tensions between Germany and the US? Who formed the Vietminh League and why? How did muskets change the world? What was the northern army called during the civil war? What did the British tell Indian people in order to get them to fight with them in World War 1? What was Lincoln's pet's name?