photos of The Arab Revolution photos of protests in bahrain photos of protests in libya photos of protests in palestine photos of protests in iraq photos of protests in egypt photos of protests in yemen photos of protests in sysria photos of protests in oman photos of protests in saudi arabia photos of protests in tunisia photos of protests in morocco photos of protests in united arab emirates photos of protests in kuwait

Anti-government protesters shout slogans during a rally to demand the ouster of Yemen's President Ali Abdullah Saleh in Sanaa May 20, 2011. Saleh called on Friday for early elections in an apparent bid to stave off Gulf and Western pressure to leave office, as thousands rallied for and against his three-decade rule. Reuters/Khaled Abdullah

Yemen's President Ali Abdullah Saleh waves to pro-government supporters during a rally in Sanaa May 20, 2011. Yemen's entrenched president called for early elections in a speech to a pro-government rally on Friday, though he gave no details on when or how the election would take place. Reuters/Ammar Awad

Yemen's President Ali Abdullah Saleh wipes his face during an address to pro-government supporters in Sanaa May 20, 2011. Yemen's entrenched president called for early elections in a speech to a pro-government rally on Friday, though he gave no details on when or how the election would take place. Reuters/Ammar Awad

Yemen's President Ali Abdullah Saleh addresses pro-government supporters in Sanaa May 20, 2011. Yemen's entrenched president called for early elections in a speech to a pro-government rally on Friday, though he gave no details on when or how the election would take place. Reuters/Ammar Awad

Yemen's President Ali Abdullah Saleh claps during an address to pro-government supporters in Sanaa May 20, 2011. Yemen's entrenched president called for early elections in a speech to a pro-government rally on Friday, though he gave no details on when or how the election would take place. Reuters/Ammar Awad

Yemen's President Ali Abdullah Saleh waves to pro-government supporters during a rally in Sanaa May 20, 2011. Yemen's entrenched president called for early elections in a speech to a pro-government rally on Friday, though he gave no details on when or how the election would take place. Reuters/Ammar Awad

Anti-government protesters attend a rally to demand the ouster of Yemen's President Ali Abdullah Saleh in Sanaa May 20, 2011. Saleh called on Friday for early elections in an apparent bid to stave off Gulf and Western pressure to leave office, as thousands rallied for and against his three-decade rule. Reuters/Khaled Abdullah

An Afghan National Army (ANA) soldier secures an area after an explosion in Kabul May 21, 2011. A suicide bomber killed at least six people and wounded 23 more when he detonated explosives at a military hospital in the Afghan capital Kabul on Saturday, the Defence Ministry said in a statement. Reuters/Omar Sobhani

Afghan National Army (ANA) soldiers and a police officer secure an area after an explosion in Kabul May 21, 2011. A suicide bomber killed at least six people and wounded 23 more when he detonated explosives at a military hospital in the Afghan capital Kabul on Saturday, the Defence Ministry said in a statement. Reuters/Omar Sobhani

An Afghan National Army (ANA) soldier secures an area after an explosion in Kabul May 21, 2011. A suicide bomber killed at least six people and wounded 23 more when he detonated explosives at a military hospital in the Afghan capital Kabul on Saturday, the Defence Ministry said in a statement. Reuters/Omar Sobhani

Afghan National Army (ANA) soldiers secure an area after an explosion in Kabul May 21, 2011. A suicide bomber killed at least six people and wounded 23 more when he detonated explosives at a military hospital in the Afghan capital Kabul on Saturday, the Defence Ministry said in a statement. Reuters/Omar Sobhani

Afghan National Army soldiers arrive at the Kabul's main military hospital in Kabul, Afghanistan, Saturday, May 21, 2011. The Afghan Defense Ministry says a suicide bomber blew himself up inside a tent filled with medical students eating lunch at a military hospital in Kabul Saturday, killing at least six people and wounding 23. (AP Photo/Mustafa Quraishi)

Residents gather near the coffins of victims who were killed after a truck, carrying fuel for NATO forces in Afghanistan, was hit by a bomb attack in Landikota in Pakistan's Khyber region May 21, 2011. At least 16 people were killed in northwest Pakistan on Saturday after a bomb attack claimed by a militant group hit a truck carrying fuel supplies for NATO forces in Afghanistan, the latest attack in an upsurge in violence since Osama bin Laden was killed. Reuters/Stringer

Pakistani tribesmen offering funeral prayer of the victims of NATO oil tanker explosion in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, and 15 were killed, an official said. (AP Photo/Qazi Rauf)

Pakistani tribesmen carry a casket of a victim of NATO oil tanker explosion for a funeral prayer in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, and 15 were killed, an official said. (AP Photo/Qazi Rauf)

Pakistani tribesmen gather around the caskets of the victims of NATO oil tanker explosion during their funeral prayer in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, and 15 were killed, an official said. (AP Photo/Qazi Rauf)

Pakistani youngsters stand next to a burnt NATO oil tanker caused by alleged militants attacked in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, and 15 were killed, an official said. (AP Photo/Qazi Rauf)

Pakistani youngsters look to a burnt NATO oil tanker caused by alleged militants attacked in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, and 15 were killed, an official said. (AP Photo/Qazi Rauf)

Pakistani youngsters stand next to a burnt NATO oil tanker caused by alleged militants attacked in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, and 15 were killed, an official said. (AP Photo/Qazi Rauf)

Residents survey a truck carrying fuel supplies for NATO forces in Afghanistan, after it was hit by a bomb attack in Landikotal in Pakistan's Khyber region May 21, 2011. Reuters/Stringer

People walk around a burnt tanker, part of a NATO convoy that was attacked in Landikotal near the Afghanistan border, in this still image from a May 21, 2011 video. At least 16 people were killed in northwest Pakistan on Saturday after a bomb attack claimed by a militant group hit a truck carrying fuel supplies for NATO forces in Afghanistan, the latest attack in an upsurge in violence since Osama bin Laden was killed. Reuters/Samaa via Reuters TV

Two Canadian Armed Forces CH-146 Griffon helicopters fly down the runway at 408 squadron in Edmonton, Alberta, May 20, 2011. In service in Canada since 1995, the Griffon is used at home and abroad for search and rescue missions, surveillance and reconnaissance, casualty evacuation and has been used in Afghanistan. Reuters/Todd Korol

Afghan laborers pass bricks at the construction site of a house in Kabul, Afghanistan, Friday, May 20, 2011. (AP Photo/ Ahmad Nazar)

The Arab Revolution of 2011