Mustafa Kemal Pasha decided to establish a group that would act in the ‘party discipline’ under his leadership in order to eliminate this faction in the Assembly and to prevent the never-ending discussions. On May 10, 1921, with the establishment of the Anatolian and Rumelia Defence of Rights Group (the First Group) led by Mustafa Kemal Pasha, the first political division, in the First Assembly, emerged.