Taliban attacks well-fortified ‘green’ zone

An Afghan military helicopter fires on a building that is occupied by Taliban insurgents during a coordinated assault in Kabul. Taliban insurgents fired rocket-propelled grenades and assault rifles at the U.S. Embassy, NATO headquarters and other buildings in the heart of the Afghan capital Tuesday while suicide bombers struck police buildings. The U.S. Embassy and NATO reported no casualties.   (Musadeq Sadeq / Associated Press)

Afghan security officials carry the body of a fallen comrade after several armed Taliban militants launched attacks in Kabul.  (S. Sabawoon / EPA)

Afghanistan’s security personnel approaches a building from where Taliban fighters attacked the most heavily protected parts of Kabul.   (Massoud Hassaini / AFP / Getty Images)