Israyelian's best-known memorial is the Sardarapat Memorial, near Araks, Armavir, completed in 1968 and inaugurated on May 25 of that year. It is dedicated to the 1918 Battle of Sardarabad, in which the Armenian forces stopped the advantage of Turkish forces towards Yerevan. He also designed memorials dedicated to self-defenses during the Armenian Genocide. The monument to 1915 Defense of Hachn, was erected in Nor Hachn in 1974 and the of Musa Dagh in Musaler in 1976. The latter was sculpted by Ara Harutyunyan. The of the 1918 Battle of Bash-Aparan was erected in Aparan in 1979.