Up in ArmsArmed rebels in the Yemeni capital of Sanaa (map) inspect the newly charred home of opposition leader Sheikh Sadiq al-Ahmar, head of the Hashid tribal confederation on Tuesday. Over the past few weeks, clashes between government and dissident forces have killed hundreds in the city.On Friday mass demonstrations erupted again, led in part by al-Ahmar and spurred by news that President Ali Abdullah Saleh—currently in Saudi Arabia receiving treatment for wounds sustained during an attack on his palace—plans to return to Yemen soon.Why it's a Nat Geo pick: The composition takes you "farther and farther into the picture—it's not just what it appears to be at first."—Katel LeDu, director of photography, National Geographic Digital Media

Photograph by Ahmad Gharabli, AFP/Getty Images