The size of these units increased during the war and Boghos Nubar gave the summary of these units in a public latter to the Paris Peace Conference, 1919 as 150,000 Armenians in the volunteer units and 50,000 Armenian militia.
He also served as the head of the Armenian General Benevolent Union becoming its 4th president from 1943 to 1952, after Boghos Nubar, Calouste Gulbenkian and Zareh Nubar.