1) Sudan
2) Syria
3) Algeria
4) Egypt
Explanation:
On August 20,2019 economist Abdalla Hamdok took charge as the new prime minister(15th) of Sudan embarking three year transition to civilian rule after military authoritarian Omar al-Bashir was forced to step down from president post by rage protests. The chief justice of Sudan Abbas Ali Babiker administered the swearing-in ceremony held at the Presidential Palace in Khartoum. He succeeded Mohamed Tahir Ayala.