The world has left Yemen to die. National Geographic reports on the terrible conditions in Yemen.

Iran’s Wolf Wall, the second-longest in the world, is still shrouded in mystery. Paul Cooper recounts what is known about the Gorgan Wall in northeastern Iran, a Sasanian-era fortification that goes unmentioned in the ancient sources.

With U.S. sanctions looming, Iran faces a potentially explosive economic crisis. Mohsen Milani analyzes the protests in Iran and says, “Iran is not falling apart, but it is preparing itself politically and economically to cope with the renewed American sanctions and potential internal upheaval.”