People gather at the site of a car bomb attack in Baghdad
People gather at the site of a car bomb attack in Baghdad's Sadr City, August 1, 2014. Violence killed 1,737 people, mostly civilians, in Iraq in July, when Sunni insurgents seized large swathes of land in the north, United Nations figures showed. REUTERS/Wissm al-Okili (IRAQ - Tags: CIVIL UNREST POLITICS)
People gather at the site of a car bomb attack in Baghdad
People gather at the site of a car bomb attack in Baghdad's Sadr City, August 1, 2014. Violence killed 1,737 people, mostly civilians, in Iraq in July, when Sunni insurgents seized large swathes of land in the north, United Nations figures showed. REUTERS/Wissm al-Okili (IRAQ - Tags: CIVIL UNREST POLITICS)
Girls walk past the site of a car bomb attack in Baghdad
Girls walk past the site of a car bomb attack in Baghdad's Sadr City, August 1, 2014. Violence killed 1,737 people, mostly civilians, in Iraq in July, when Sunni insurgents seized large swathes of land in the north, United Nations figures showed. REUTERS/Wissm al-Okili (IRAQ - Tags: CIVIL UNREST POLITICS)
A man walks past the site of a car bomb attack in Baghdad
A man walks past the site of a car bomb attack in Baghdad's Sadr City, August 1, 2014. Violence killed 1,737 people, mostly civilians, in Iraq in July, when Sunni insurgents seized large swathes of land in the north, United Nations figures showed. REUTERS/Wissm al-Okili (IRAQ - Tags: CIVIL UNREST POLITICS)
Palestinian children receive treatment at a hospital in Rafah in the southern Gaza Strip
Palestinian children, whom medics said were wounded by Israeli shelling, receive treatment at a hospital in Rafah in the southern Gaza Strip August 1, 2014. A Gaza ceasefire crumbled only hours after it began on Friday, with at least 40 Palestinians killed by Israeli shelling and Israel accusing militants of violating the U.S.- and U.N.-brokered truce by firing rockets and mortars. The 72-hour break announced by U.S. Secretary of State John Kerry and U.N. Secretary-General Ban Ki-moon was the most ambitious attempt so far to end more than three weeks of fighting, and followed mounting international alarm over a rising Palestinian civilian death toll. REUTERS/Ibraheem Abu Mustafa (GAZA - Tags: CIVIL UNREST MILITARY POLITICS TPX IMAGES OF THE DAY CONFLICT)
Palestinians walk through rubble from a building that was destroyed by an air strike in the Burij refugee camp in the central Gaza Strip
Palestinians walk through rubble from a building that police said was destroyed by an Israeli air strike, in the Burij refugee camp in the central Gaza Strip August 1, 2014. Israeli shelling near the southern Gaza town of Rafah killed at least 40 people on Friday, the local hospital said, as a ceasefire that went into effect only hours earlier crumbled. Israel accused Hamas and other Palestinian militant groups of violating the U.S.- and U.N.-mediated truce, but did not elaborate, amid Israeli media reports that gunmen had fired at Israeli soldiers in the Rafah area. REUTERS/Finbarr O'Reilly (GAZA - Tags: CIVIL UNREST MILITARY POLITICS CONFLICT)
Palestinians walk through rubble from a building that was destroyed by an air strike in the Burij refugee camp in the central Gaza Strip
Palestinians walk through rubble from a building that police said was destroyed by an Israeli air strike, in the Burij refugee camp in the central Gaza Strip August 1, 2014. Israeli shelling near the southern Gaza town of Rafah killed at least 40 people on Friday, the local hospital said, as a ceasefire that went into effect only hours earlier crumbled. Israel accused Hamas and other Palestinian militant groups of violating the U.S.- and U.N.-mediated truce, but did not elaborate, amid Israeli media reports that gunmen had fired at Israeli soldiers in the Rafah area. REUTERS/Finbarr O'Reilly (GAZA - Tags: POLITICS MILITARY CIVIL UNREST CONFLICT)
Israeli soldiers stand on an armoured personnel carrier (APC) outside the central Gaza Strip as they fire mortar shell towards Gaza before a ceasefire was due
Israeli soldiers stand on an armoured personnel carrier (APC) outside the central Gaza Strip as they fire mortar shell towards Gaza before a ceasefire was due, early August 1, 2014. Israeli shelling near the southern Gaza town of Rafah killed at least 40 people on Friday, the local hospital said, as a ceasefire that went into effect only hours earlier crumbled. Israel accused Hamas and other Palestinian militant groups of violating the U.S.- and U.N.-mediated truce, but did not elaborate, amid Israeli media reports that gunmen had fired at Israeli soldiers in the Rafah area. REUTERS/Siegfried Modola (ISRAEL - Tags: POLITICS CIVIL UNREST MILITARY)
Israeli soldiers stand on an armoured personnel carrier (APC) outside the central Gaza Strip as they fire mortar shell towards Gaza before a ceasefire was due.
Israeli soldiers stand on an armoured personnel carrier (APC) outside the central Gaza Strip as they fire mortar shell towards Gaza before a ceasefire was due, early August 1, 2014. Israeli shelling near the southern Gaza town of Rafah killed at least 40 people on Friday, the local hospital said, as a ceasefire that went into effect only hours earlier crumbled. Israel accused Hamas and other Palestinian militant groups of violating the U.S.- and U.N.-mediated truce, but did not elaborate, amid Israeli media reports that gunmen had fired at Israeli soldiers in the Rafah area. REUTERS/Siegfried Modola (ISRAEL - Tags: POLITICS CIVIL UNREST MILITARY)
A Palestinian girl carries a child across rubble from a destroyed building in the central Gaza Strip
A Palestinian girl carries a child across rubble from a building that police said was destroyed by an Israeli air strike, in the Burij refugee camp in the central Gaza Strip August 1, 2014. Israeli shelling near the southern Gaza town of Rafah killed at least 40 people on Friday, the local hospital said, as a ceasefire that went into effect only hours earlier crumbled. Israel accused Hamas and other Palestinian militant groups of violating the U.S.- and U.N.-mediated truce, but did not elaborate, amid Israeli media reports that gunmen had fired at Israeli soldiers in the Rafah area. REUTERS/Finbarr O'Reilly (GAZA - Tags: CIVIL UNREST MILITARY POLITICS CONFLICT TPX IMAGES OF THE DAY)