There's numerous episodes of events that occured in north east africa
1. Meneliks war using Shoawan armies attacking bale arussi and sidama between 1882. These wars were on the periphery and we fought alongside their muslim armies that were tied to brotherhoods that went on for decades and centuries including the sudanese revolt, there were Somali Salihiyas like Sheekh Sayid Mohamed of the Karanle that spent time with the Sudanese fighters as did the Isaaq HY Sultan Nuur Amaan but the Egyptian presence that grew exponentially blocked a greater regional war by curbing Christian expansion until Colonial powers came to the horizon. Similarly Sh Uweeys al Baraawi spread his ideology to South Eastern Africa that was called Uwaysiyya that challenged German East Africa.
2. After the Egyptians left their Ottoman possessions in the Somali peninsula, Menelik warred capturing harar in the chelenqo war of 1887. Massacring and deporting ancient somali dwellers of the city including sheekhaal, gugundhabe and karanles. This was the fight that involved Sheekh Maxamed Khaliif and he was executed on his sword outside his mosque the biggest of the city and became known as Khaliif Caanabaxay for his blood produced Milk. He was a Wali Allah and loved by the people. His descendants live in Babili. This was when Karanles in Babile were on vigilant alert while many moved to safer pastures behind the mountains, Menelik was not looking to expand initially and tried negotiating with Britain, Italy and France for weapons, recognition and support. Menelik put Ras Makonnen in charge of Harar whose son is future emperor Haile Selassie.
2. By 1895 he controlled the harar routes to assab, obock, zeila and he created an outpost at Jigjiga, and once Britain/Italy/France were consolidating their borders, Menelik knew they would start creating his borders too so he expanding via the Jarar river and Ter river to the south starting at Imey and Dhagaxbuur. This was when Garad Omar of the Gidir and Ugaas Mahad of Sixawle the great grandfather of the current Sixawle Ugaas fought heavily at Harmaale.
3. Thes wars continued, the jiidle and jajeele in the poem were fighting in mayumaluqu, the dagoodi fought the Amhara many times in Negeyle area, but this time the Amhara co-opted Boranas against the Somalis. Olol Diinle's father was captured by the Ethiopians in Baareey.
4. By 1900 they reached the outskirts of luuq, beledweyne and wardheer. This was the Amharas last push into Somalia that had a string of defeats most famously the Gumar sheel defeat.
5. Menelik started drawing back but continued isolated raids especially disrupting the luuq area that had an italian flag since 1895. Until 1908 Menelik would switch between making deals with the Mad Mullah and raiding other clans to divide Somalis.
6. Once Lij Yasu took over, the emperor improved relations between all groups and Axis rivals Turkey and Germany to the extent he was deemed a threat by the Ethiopian nobility and eventually deposed in a military coup by folks close to Haile Selassie. This was when they struck his positions in Harar that Karanle chiefs and other Hawiyes scorth earthed Harar during the start of the first WW.
7. After the end of WW Italy became powerful and built an impressive army that would finally topple the independent kingdom of Ethiopia and they used Olol Dinle to capture Addis Ababa and Harar, the Italians call him the first Somali since Gurey to capture Ethiopian capitals.
8. Successive Somali governments since 1960 supported Eritrea, Bale and rebel fronts to fight the Ethiopians with two major wars 1964 and 1977. The first gold medalists of that war were reer ceelbuur, Xalane, Doonyale and Cilmi Nuur. 1 Cilmi nuur won a second medal in 1977.