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Iraqi protesters gather in the parade grounds outside the parliament in Baghdad's heavily fortified "Green Zone" on May 1, 2016, a day after supporters of Shiite cleric Moqtada al-Sadr broke into the area after lawmakers again failed to approve new ministers.
Protesters were withdrawing from Baghdad's Green Zone after breaking into the fortified area and storming Iraq's parliament in an unprecedented security breach the day before. The move, which lessens the pressure on politicians in Baghdad, came as rare bombings in the south killed 33 people and wounded dozens. / AFP / HAIDAR MOHAMMED ALI        (Photo credit should read HAIDAR MOHAMMED ALI/AFP/Getty Images)
Iraqi protesters gather in the parade grounds outside the parliament in Baghdad's heavily fortified "Green Zone" on May 1, 2016, a day after supporters of Shiite cleric Moqtada al-Sadr broke into the area after lawmakers again failed to approve new ministers.
Protesters were withdrawing from Baghdad's Green Zone after breaking into the fortified area and storming Iraq's parliament in an unprecedented security breach the day before. The move, which lessens the pressure on politicians in Baghdad, came as rare bombings in the south killed 33 people and wounded dozens. / AFP / HAIDAR MOHAMMED ALI        (Photo credit should read HAIDAR MOHAMMED ALI/AFP/Getty Images)

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    What is the Green Zone?

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What is the Green Zone?

CNN's Ben Wedeman explains the barricaded area in Baghdad that has been immune to the city's struggles and how Iraqis are trying to change that.

What is the Green Zone?

CNN's Ben Wedeman explains the barricaded area in Baghdad that has been immune to the city's struggles and how Iraqis are trying to change that.