Lviv

A policeman, center, tries to stop Ukrainian protesters as they seize police headquarters in Lviv, western Ukraine, early Wednesday, Feb. 19, 2014. The violence on Tuesday was the worst in nearly three months of anti-government protests that have paralyzed Ukraine's capital, Kiev, in a struggle over the identity of a nation divided in loyalties between Russia and the West, and the worst in the country's post-Soviet history. (AP Photo/ Pavlo Palamarchuk)

Pavlo Palamarchuk/AP

A policeman, centre, tries to stop Ukrainian protesters as they seize police headquarters in Lviv, western Ukraine. The violence on Tuesday was the worst in nearly three months of anti-government protests that have paralysed Ukraine’s capital, Kiev, and the worst in the country’s post-Soviet history.

Students take part in a pro-European rally in the western Ukrainian city of Lviv on November 28, 2013. An EU summit to cap years of effort to bring ex-Soviet states into the Western fold opens with its ambitions dented on November 28 after Ukraine, the biggest prize, balked at the last moment under Russian pressure. Kiev's surprise decision to scrap a landmark political and trade accord with the European Union just days before has set off a war of words between East and West reminiscent of the Cold War and sparked some of the biggest protests in Ukraine in a decade.

Yuri Dyachyshyn/AFP

Students take part in a pro-European rally in the western Ukrainian city of Lviv. An EU summit to cap years of effort to bring ex-Soviet states into the Western fold opens with its ambitions dented on Thursday after Ukraine, the biggest prize, balked at the last moment under Russian pressure. Kiev’s surprise decision to scrap a landmark political and trade accord with the European Union just days before has set off a war of words between East and West reminiscent of the Cold War and sparked some of the biggest protests in Ukraine in a decade.