 Mulla Mustafa would accept no dissent, and, fearing for their lives, Ahmad and his followers slipped away at night from a heated discussion with Mulla Mustafa, and retreated back to their stronghold in Mawat, Iraq.At the 6th Party Congress of the KDP in July 1964, representatives from the Ahmad-Talabani faction were promptly arrested upon arrival.A few days later Mulla Mustafa sent his son, Idris Barzani with a large force to drive Ahmad, Talabani, and their 4,000 or so followers into exile in Iran.