Its capital city was Ajdir, its currency the Rif Republic's Riffan, its national Independence Day was held on 18 September, and its total population was an estimated 550,000 people. The independence of the Rif was proclaimed on 18 September 1921, with Mohand Abd el-Krim as its president or leader. The Republic of the Rif was formally constituted 1 February 1923, with Abd el-Krim as head of state. Its prime minister, from July 1923 to 27 May 1926, was ben Hajj Hatmi and General Driss Riffi Temsamani was named Basha or Governor of the Rif. It was dissolved by Spanish and French occupation forces on 27 May 1926, after the long and bloody battles of the Rif War in which German-designed chemical weapons were used against the Berber populations by Spanish occupation forces.