clash

Deputies clash during a session of the parliament in Kiev

Valentyn Ogirenko/Reuters

Deputies clash during a session of the parliament in Kiev, Ukraine, on Tuesday

A pro-European integration protester takes cover behind a makeshift shield at the site of clashes with riot police in Kiev January 23, 2014. Ukrainian opposition leaders emerged from crisis talks with President Viktor Yanukovich on Wednesday saying he had failed to give concrete answers to their demands, and told their supporters on the streets to prepare for a police offensive.

David Mdzinarishvili/Reuters

A pro-European integration protester takes cover behind a makeshift shield at the site of clashes with riot police in Kiev, Ukraine. Opposition leaders emerged from crisis talks with President Viktor Yanukovich on Wednesday, saying he had failed to give concrete answers to their demands, and told their supporters on the streets to prepare for a police offensive

Opposition supporters cheer as they viol...Opposition supporters cheer as they violently clash with security forces in Lome, on May 23, 2013.  Authorities have banned planned opposition protests in the capital city Lome this week after a crowd of protesting students smashed windows and torched cars on May 21, 2013.   AFP PHOTO/Daniel HaydukDaniel Hayduk/AFP/Getty Images

Daniel Hayduk/AFP

Opposition supporters cheer as they clash with security forces in Lomé on Thursday. Authorities have banned planned opposition protests in Togo’s capital city this week after a crowd of students smashed windows and torched cars on May 21. Read more

Palestinian protester throws back a tear gas canister fired by Israeli troops during clashes near the village of Deir Jarir near Ramallah

Mohamed Torokman/Reuters

A Palestinian protester throws back a tear gas canister fired by Israeli troops during clashes near the West Bank village of Deir Jarir on Friday

A Palestinian demonstrator from the West Bank village of Deir Jarir, northeast of Ramallah, burns tyres during clashes with Israeli soldiers following a march against construction on their land by members of the nearby Jewish settlement of Ofra on April 26, 2013.

Abbas Momania/AFP

A Palestinian demonstrator from the West Bank village of Deir Jarir, northeast of Ramallah, burns tyres during clashes with Israeli soldiers following a march against construction on their land by members of the nearby Jewish settlement of Ofra.