Under the American occupation of 2003 it became the even more intensely fortified Green Zone, a surreal dystopia of six square miles in which Iraqis were largely unwelcome in their own capital. Today, after a 12-year interlude, the Green Zone is open to Baghdadis again. But as so often in their extraordinarily bloody history, Iraqis find they have very little to cheer about as the country tears itself apart. The great city of Baghdad survives, but its people are once again engulfed in terrible violence.