Yamulki was born into a prominent family from Sulaymaniah; Aziz was raised in a privileged environment and moved to Constantinople, where lived in his uncle's Said Pasha Kurd's palace and attended the Ottoman military academy.

His father had returned to his native Sulaymaniah after the fall of the Ottoman Empire, Aziz would later join the Iraqi military.

Aziz and seven other officers mainly of Kurdish ethnicity started to plot the downfall of the Iraqi government.

Aziz Yamulki, then president of the club, was to give a secret signal and the assassination was to take place when the lights were to be put out.

[1] After his involvements in coup d'état Aziz was distanced by being sent to Afghanistan as Iraq Charge d'Affaires at Kabul.