1. Reparations: The Treaty of Versailles, which officially ended World War I, required Germany to pay reparations to the Allied Powers. The reparations were intended to compensate the Allied Powers for the damage caused by Germany during the war. The total amount of reparations was initially set at 132 billion gold marks (about $33 billion), but was later reduced to 112 billion gold marks (about $26 billion). Germany made its last reparation payment in 2010.
2. War debts: In addition to reparations, Germany also owed war debts to the United States, Great Britain, and other countries. These debts were incurred by the German government during the war, and they were repaid over a period of several decades.
3. Inflation: Germany experienced severe inflation in the years after World War I. This was caused by several factors, including the cost of reparations, the disruption of the German economy by the war, and the loss of confidence in the German currency. The inflation made it difficult for Germany to pay its debts, and it also caused widespread economic and social unrest.