sentences:  The commander of the Central Army Nureddin Pasha sent a force of some 3,000 cavalrymen and irregulars including Topal Osman's battalions.By February fighting between parties began and the Turks demanded the unconditional surrender of the Kurdish revolutionaries.A first major encounter between the factions ended victorious for the Kurds, but fighting went on and the rebels were crushed by June 17, 1921.Before repressing the rebels, Nureddin Pasha said (according to some sources, this statement belongs to Topal Osman)