Riyadh wants to help Yemen's various southern factions come up with creative solutions. It wants a unified Yemen, but other parties have a different agenda, complicating efforts to hold a conference.
No single party in Yemen can impose dominance over the other through military force, nor can any side achieve dominance solely by relying on external actors
For decades, two separate states - North and South Yemen - existed side-by-side, until the Cold War ended. Suddenly, the two came together. For a brief moment, united Yemen prospered.
Cheap unmanned aerial vehicles cost only a few thousand dollars to make, but are costing millions to defend against, turning the economics of war on its head
Britons seem fed up with establishment parties after Labour's disastrous performance in this week's local elections, and the Tories' similar failure two years ago
Nestled on the southern Mediterranean coast, Egypt's quaint coastal metropolis marked its inception as an ancient city that wore many hats across civilisations