Police respond with batons and tear gas . Ukraine 's president , Viktor Yanukovych , is in a tight spot . He has been accused of corruption by the opposition ( who are demanding his resignation ) but he also needs to keep Russia from invading eastern Ukraine. The EU wants him to release his bitter political opponent .
Police respond with batons and tear gas . Ukraine 's president , Viktor Yanukovych , is in a tight spot . Russia is pressuring him to not join the EU . The EU wants him to release his bitter political opponent .