 The Commission gained such a concession in the Treaty of Sèvres, signed in August 1920.Renegotiation occurred after the Turkish War of Independence, and in the Treaty of Lausanne the IWGC gained the right to land the Allies considered "necessary for the establishment of cemeteries for the regrouping of graves, for ossuaries or memorials".By 1926, the IWGC had built 31 cemeteries and five memorials on the peninsula.