Germany lost all of her overseas colonies.
Germany lost 13% of her land in Europe. East Prussia was split from Germany by the Polish Corridor.
German armed forces were severely reduced. For example, there was no air force, and a maximum of 100,000 soldiers.
Rhineland was demilitarised.
Germany had reparation payments of £6.6 billion
The War Guilt Clause - Article 231 - Germany had to take responsibility for starting ww1