The picture is from the conflict between Eritrea and Ethiopia. In Ethiopia ownership of fully automatic firearms is 100% legal.
Straying a little off topic, but not completely:
A friend of ours from down South was Ethiopian and married an Eritrean. Living in Eritrea eventually did not work out so well for him. Despite having a PhD and not having a militant bone in his body, he was captured and brutally tortured. Several of us from our church supported his citizenship and if you can believe it, it was not a sure thing for him. If he had been able to arm himself like the lady in the pic, maybe the story would be different...