Federal Democratic Republic of Ethiopia

So what?  An Article 51 filing lays legal groundwork for cross-border action, which makes Assab the likeliest objective if Ethiopia escalates. A fight there would open a second armed front on the Red Sea approaches beside the Houthi-Saudi war, and Djibouti, which carries most of Ethiopia's trade, would absorb the shipping and refugee spillover.

So what?  Since Statim flagged the explosions in Addis Ababa, a security incident has become a formal rupture that closes the channel most likely to restrain a state-to-state war. Expect Eritrean and Tigrayan outflows toward Sudan and Kenya if fighting widens, with Red Sea port access the likeliest flashpoint, unless an African Union or Gulf mediator gets both sides into a room.