I finished the books on the Ogaden war and the second volume on the Ethiopian Eritrean conflicts. For the project I try to create I am planning to have the air force of Ethiopia, Eritrea and Somali. With all the photos in the book, I determined what the different roundels for the aircraft would be. For Somali and Eritrea this was quite easy. But the Ethiopian air force is quite challenging, and multiple different roundels can be found. Even the information on Wikipedia is incomplete. But I came up to the following roundels.
Ethiopian Air Force
The Imperial Ethiopian Air Force Roundel from 1941-1974. Multiple different shapes of the star in the middle can be found. With more sharper points. This roundel was replaced in 1974 but was still used on older planes for long period of time. So coexisted with newer versions.
The Ethiopian Air Force Roundel from 1974~1998. The roundel has been replaced with the next version, but can still be seen on older planes. Coexisting with both other designs, and can be spotted still today.
The Ethiopian Air Force roundel of present day. Introduced just before the Badme war. 1998~now.
Somali Air Force
Somali Air Force roundel, introduced after the creation of the air force in 1954 and still used up today. It is very similar to the USAF roundel from 1942-1943.
Eritrean Air Force
The Eritrean Air force was only created in 1994 when it gained the Eritrean Independence. It started with old Ethiopian planes. Roundel is used up to today.