10. Isaias Afwerki – Eritrea: 25 years in power
Isaias Afwerki is the first President of the State of Eritrea. He assumed the office on 27th April 1991, when the nation gained its independence.
9. Idriss Deby – Chad: 25 years in power
This Chadian politician has been serving the nation as its President since 2nd December 1990.