Boxing legend Wladimir Klitschko has vowed to fight the Russian army following Russia’s invasion of their country Ukraine. Wladimir Klitschko’s brother Vitali Klitschko, who is the mayor of Ukraine’s capital Kyiv since 2014, also said he would take up arms. On February 24, Russia mounted an attack on Ukraine by sea, air & land after President Vladimir Putin announced a military operation. Watch the video to know more.