What would be the most likely way for the border war between Ethiopia and Eritrea that began in 1998 to flare up beyond what it did IOTL and involve neighboring countries? IMHO I can see Yemeni intervention as being plausible, due to its differences with Eritrea over the Hanish Islands. What about Sudan, Saudi Arabia, and Djibouti?
How would this change history and what would such a war look like?
How would this change history and what would such a war look like?