Toward the end of the Sochi 2014 Winter Olympics, Ukraine's months-long conflict erupted into a series of violent clashes before morphing into an international crisis. Here are key events that happened in Ukraine since then.
February 22, 2014
Ukrainian President Viktor Yanukovych flees after protesters seize his Kiev office and the parliament votes to oust him. This marks the final straw after protests began in November when Yanukovych rejected an association agreement with the European Union, seeking closer ties with Moscow.