In 1922 Germany and the emerging Soviet Union signed a treaty in Rapallo (in Italy). There were secret clauses in which Russia allowed Germany to station and train troops there. This was important for Germany as the Treaty of Versailles limited the size of the German Army to 100,000 men. Rapallo was a treaty between two shunned 'outcast' nations.

-Emma- The Rapallo Agreement stated that Germany would make an annual payment to Russia in exchange for the training of its armed forces. All of which Germany was forbidden to possess as this meant that they were slowly beginning to re-militarize which violated the Treaty of Versailles.