The main terms of the Treaty of Versailles were:
War Guilt Clause - Germany should accept the blame for starting World War One
Reparations - Germany had to pay 6,600 million for the damage caused by the war
Disarmament - Germany was only allowed to have a small army and six naval ships. No tanks, no airforce and no submarines were allowed. The Rhineland area was to be de-militarised.
Territorial Clauses - Land was taken away from Germany and given to other countries. Anschluss (union with Austria) was forbidden.
The German people were very unhappy about the treaty and thought that it was too harsh. Germany could not afford to pay the money and during the 1920s the people in Germany were very poor. There were not many jobs and the price of food and basic goods was high. People were dissatisfied with the government and voted to power Adolf Hitler who promised to abolish the Treaty of Versailles and restore Gemany's honour.