In 1930, the Allied powers established the Bank for International Settlements (BIS). The principal purposes of the BIS were to manage the scheduled payment of Germany's reparations imposed by the Treaty of Versailles in 1919, and to function as a bank for central banks around the world. Nations may hold a portion of their reserves as deposits with the institution. It also serves as a forum for central bank cooperation and research on international monetary and financial matters. The BIS also operates as a general trustee and facilitator of financial settlements between nations.