A senior Ethiopian general said in a video clip posted on social media this week that Eritrean troops had entered the country uninvited while his soldiers were battling a rebellious force in the northern region of Tigray. The video, whose authenticity Reuters could not independently verify, shows Major General Belay Seyoum addressing a meeting in the Tigrayan capital Mekelle in late December. "An army that we don't want has entered. Are we the one that invited them? No," he said. "They just entered by themselves, and this has to be made clear." Prime Minister Abiy Ahmed's spokeswoman, the head of…