The Armenian National Delegation was established in 1912 in order to defend the interests of Armenians, at a time when the Great Powers were advocating again reforms in favour of the Christian population of the Ottoman Empire’s Eastern provinces, decades after the first diplomatic initiative undertaken at the Berlin Congress in 1878. Boghos Nubar was appointed head of the delegation by the Catholicos Kevork V, and by the end of 1912, had settled in Paris. Thereafter he deployed intense diplomatic activity, especially with Allied governments during the war and in the negotiation of the Treaty of Sèvres (1919), in which he participated alongside the delegation of the short-lived Armenian Republic. The archives of the Armenian National Delegation headed by Boghos Nubar remained at the Nubar Library before being partly transferred to the National Archives in Yerevan in the 1980s. The Nubar Library still retains important documentation consisting of the correspondence of the delegation between 1913 and 1921, and a vast press review collated by Aram Andonian, then secretary of the National Delegation, covering the period between 1919 and 1923.