Ogaden.

This is coolbert:

Hard to say if this combat action as reported is a mere continuation of the Ogaden War from the late 1970's.

Events as occurring decades ago now some persons have long memories and a grudge. The war continues but for the most part under the radar. 

"Over 160 Ethiopian Soldiers Killed by Al-Shabaab Militants in Western Somalia"

The Battle of Wajid. The story courtesy https://sputnikglobe.com

"MOSCOW (Sputnik) - At least 167 Ethiopian soldiers were killed in an ambush by militants of the radical Islamist group Al-Shabaab in western Somalia, the Somali Guardian news portal reported on Sunday, citing the group."

"The group also said that surviving Ethiopian soldiers had been captured and the advance of Ethiopian troops had been stopped, the report said, adding that the militants also destroyed Ethiopian military equipment and seized a large amount of weapons."

Consider the Ogaden War within context of the most recent fighting. Thanks to the wiki entry:

"The Ogaden War, also known as the Ethio-Somali War . . . was a military conflict fought between Somalia and Ethiopia from July 1977 to March 1978 over the Ethiopian region of Ogaden. Somalia's invasion of the region, precursor to the wider war, met with the Soviet Union's disapproval, leading the superpower to end its support of Somalia and support Ethiopia instead."

Not sure if this Wajid east of the "administrative line" de facto border between Ethiopia and Somalia. That Ogaden 

Ogaden War fought to create a Greater Somali state incorporating all ethnic Somali into a single unified nation-state. A war involving Cuban interventionists with victory to the Ethiopian side.

Wajid merely a continuation of events as transpired in 1977/1978? Probably a stretch but maybe not so much so. As I said, those people have long memories.

coolbert.