somalia and etheopia? (serious answers plz)?

Question

how did the war between them start.

Answer 1

Eritrea is a rival of Ethiopia. Eritrea was behind the anarchy in Somalia as a threat to Ethiopia

Ethiopia and Eritrea had a war a few years back. It was trench warfare and was more like WW1, than modern day warfare. They finally had an uneasy cease fire, but Eritrea keeps provoking Ethiopia