The Treaty of Versailles had a number of provisions, including:
* Germany was forced to give up territory to the Allied Powers, including Alsace-Lorraine to France, Eupen-Malmédy to Belgium, North Schleswig to Denmark, and West Prussia, Posen, and Upper Silesia to Poland.
* Germany was required to pay reparations to the Allied Powers in the amount of 132 billion gold marks, or about $33 billion.
* Germany was forbidden from having an air force or submarines, and its navy was limited to six battleships, six cruisers, twelve destroyers, and twelve torpedo boats.
* Germany was required to accept responsibility for starting World War I, and its leaders were put on trial for war crimes.
The Treaty of Versailles was very unpopular in Germany, and it is widely believed to have contributed to the rise of Adolf Hitler and the Nazi Party. In 1939, Hitler invaded Poland, which started World War II.