Possible Clues:

• Neighbor of Ethiopia
• Part of Burkina Faso – Mali – another African country!
• Republic in extreme eastern Africa
• Thus, African country borders a different one
• Country of East Africa
• Thus part of West Africa joins a part of East Africa
• Civil war locale beginning in 1991
• Eastern African state
• Is Alamo an African state?
• Thus one African country is followed by a second