Right wing activists leader Mykola Kokhanivsky holds a hammer as demonstrators attempt to destroy a Soviet-era monument during a protest near the parliament building in Kiev, Ukraine, Sunday, Oct. 14, 2018. (AP Photo/Efrem Lukatsky)

Ukrainian army veterans attend a rally marking Defender of Ukraine Day in centre Kiev, Ukraine, Sunday, Oct. 14, 2018. (AP Photo/Efrem Lukatsky)

Ukrainian army veterans attend a rally marking Defender of Ukraine Day in centre Kiev, Ukraine, Sunday, Oct. 14, 2018. (AP Photo/Efrem Lukatsky)

Supporters of the Organization of Ukrainian Nationalists scuffle with police as they attempt to demolish a monument to participants of Kiev's uprising in January 1918 in Kiev on October 14, 2018. - Ukraine marks on October 14, 2018, the Feast of the Intercession of the Virgin Mary, which is considered to be the symbolic day for Ukrainan nationalists and the Defender's Day. (Photo by Sergei CHUZAVKOV / AFP)

Ukrainian police stand guard around a Soviet-era monument to Red Army general Vatutin during a rally by the supporters of Organization of Ukrainian Nationalists in Kiev on October 14, 2018. - Ukraine marks on October 14, 2018, the Feast of the Intercession of the Virgin Mary, which is considered to be the symbolic day for Ukrainan nationalists and the Defender's Day. (Photo by Sergei CHUZAVKOV / AFP)