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

A wounded Yemeni anti-government protester is helped by a fellow demonstrator in Sanaa. The United States on Sunday condemned political violence in Yemen and Bahrain, urging both governments to use restraint and to respect the "universal rights" of opposition demonstrators.(AFP/Gamal Noman)

Anti-government protesters confront riot police on a flyover near the Pearl Square in Manama, March 13, 2011. Reuters/Hamad I Mohammed

A protester overcome by tear gas is ferried away in Manama. Bahraini police on Sunday clashed with demonstrators trying to occupy Manama's banking centre, as protests spread from a peaceful sit-in to the heart of the strategic Gulf state's business district.(AFP)

A protester overcome by tear gas is ferried away in Manama. Bahraini police on Sunday clashed with demonstrators trying to occupy Manama's banking centre, as protests spread from a peaceful sit-in to the heart of the strategic Gulf state's business district.(AFP

Tear gas is fired by Bahraini police among protestors gathered close to Pearl Square, the epicentre of anti-government protests in Manama. Bahraini police on Sunday clashed with demonstrators trying to occupy Manama's banking centre, as protests spread from a peaceful sit-in to the heart of the strategic Gulf state's business district.(AFP)

Anti-government protesters bring garbage containers to block the roads from riot police at the junction of Bahrain's Financial Harbour, Manama, March 13, 2011. Reuters/Hamad I Mohammed (BAHRAIN - Tags: POLITICS CIVIL UNREST)

Riot police fire a tear gas canister at anti-government protesters Sunday, March 13, 2011, in Manama, Bahrain. The demonstrators had blocked the highwayinto the capital's financial district, but riot police were unable to dislodge them. (AP Photo/Hasan Jamali)

An anti-government protester gestures at riot policement moments before they fired tear-gas and rubber bullets to disperse a protest in Manama March 13,2011. Bahraini riot police fired thick clouds of tear gas and pushed back protesters who blocked a main thoroughfare leading to the Bahrain Financial Harbour, a key business district in the Gulf Arab region's banking centre. Reuters/Hamad I Mohammed

Anti-government protesters confront riot police assembled on a flyover near the Pearl Square in Manama, March 13, 2011. Bahraini riot police fired thickclouds of tear gas and pushed back protesters who blocked a main thoroughfare leading to the Bahrain Financial Harbour, a key business district in the Gulf Arab region's banking centre. Reuters/Hamad I Mohammed

An anti-government protester wearing a mask to protect against tear gas and splashed with a lotion to help people overcome the effects of the gas, reactsSunday, March 13, 2011, after riot police pulled away from a main highway in Manama, Bahrain. Riot police in Bahrain fired tear gas and rubber bullets at anti-government demonstrators blocking the highway into the capital's financial district Sunday and surrounded the protesters' main camp in the capital, eyewitnesses said, although they failed to dislodge the thousands of protesters blocking the highway. (AP Photo/Hasan Jamali)

A man pours cola over the face of a demonstrator who was overcome by the effects of tear gas, to help counter the effects of the gas, during clashes betweenpolice and anti-government demonstrators Sunday, March 13, 2011, in Manama, Bahrain. Riot police in Bahrain fired tear gas and rubber bullets at anti-government demonstrators blocking the highway into the capital's financial district Sunday and surrounded the protesters' main camp in the capital, eyewitnesses said, although they failed to dislodge the thousands of protesters blocking the highway. (AP Photo/Hasan Jamali

Anti-government protesters bury tear gas canisters fired by riot police Sunday, March 13, 2011, along a main highway in Manama, Bahrain. Some overcomeby gas ran away while more rushed to the overpass as riot police pulled away. Riot police in Bahrain fired tear gas and rubber bullets at anti-government demonstrators blocking the highway into the capital's financial district Sunday and surrounded the protesters' main camp in the capital, eyewitnesses said, although they failed to dislodge the thousands of protesters blocking the highway. (AP Photo/Hasan Jamali) Purchase Cart

Anti-government protesters rush to a highway overpass in Manama, Bahrain, as riot police pull out, in background, Sunday, March 13, 2011, after pushingdemonstrators back from the financial area with tear gas and rubber bullets. Riot police in Bahrain fired tear gas and rubber bullets at anti-government demonstrators blocking the highway into the capital's financial district Sunday and surrounded the protesters' main camp in the capital, eyewitnesses said, although they failed to dislodge the thousands of protesters blocking the highway. (AP Photo/Hasan Jamali)

An anti-government protester reacts to clouds of tear gas fired by police Sunday, March 13, 2011, in Manama, Bahrain. Riot police in Bahrain fired teargas and rubber bullets at anti-government demonstrators blocking the highway into the capital's financial district Sunday and surrounded the protesters' main camp in the capital, eyewitnesses said, although they failed to dislodge the thousands of protesters blocking the highway. (AP Photo/Hasan Jamali)

Anti-government protesters evacuate the injured to hospitals in private cars and ambulances as riot police leave the area firing tear gas Sunday, March13, 2011, in Manama, Bahrain. (AP Photo/Hasan Jamali)

Anti-government protesters and a medical worker attend to a demonstrator who was overcome by tear gas fired by riot police Sunday, March 13, 2011, alonga main highway in Manama, Bahrain. (AP Photo/Hasan Jamali)

Anti-government protesters carry away a fellow demonstrator who was overcome by tear gas fired by riot police Sunday, March 13, 2011, along a main highwayin Manama, Bahrain. (AP Photo/Hasan Jamali)

An anti-government protester clears the way for an ambulance Sunday, March 13, 2011, in Manama, Bahrain.… (AP Photo/Hasan Jamali)

An anti-government protester cries as she watches people overcome by tear gas and hit by rubber bullets being evacuated to hospital Sunday, March 13, 2011,in Manama, Bahrain. (AP Photo/Hasan Jamali)

Anti-government protesters shout slogans at riot policemen as they block a road in Manama March 13, 2011 Reuters/Hamad I Mohammed

An anti-government protester reacts as he is loaded on the back of a pickup truck to be taken away for medical care Sunday, March 13, 2011, in Manama,Bahrain. (AP Photo/Hasan Jamali)

An anti-government protester gestures as he is taken on the back of a pickup truck for medical care Sunday, March 13, 2011, in Manama, Bahrain.… (AP Photo/Hasan Jamali)

Anti-government protesters chant and wave flowers in front of riot police Sunday, March 13, 2011, in Manama, Bahrain.… (AP Photo/Hasan Jamali)

Anti-government protesters react to tear gas fired by riot police Sunday, March 13, 2011, along a main highway in Manama, Bahrain.… (AP Photo/Hasan Jamali)

The Arab Revolution of 2011