Hall of Fame Ukrainian boxer Vitali Klitschko said he will take up arms to fight Russia as attacks on his homeland have continued. <br /> <br />Vitali said he will fight alongside his brother and former heavyweight champion Wladimir Klitschko, who enlisted earlier this month into the Ukrainian reserve army. <br /> <br />Vitali, 50, who is also the mayor of the capital city of Kyiv, told Good Morning Britain that Ukraine is already fighting a "bloody war" and he doesn't have "another choice."