الحزب الاشتراكي اليمني
In 1970, he received another military scholarship to study tanks in Egypt. Hadi spent the following four years in the Soviet Union studying military leadership. He occupied several military posts in the army of South Yemen until 1986, when he fled to North Yemen with Ali Nasser Mohammed, president of South Yemen, after Ali Nasser's faction of the ruling Yemeni Socialist Party lost the 1986 civil war.