KYIV, Oct 14 (Reuters) - President Volodymyr Zelenskiy marked Ukraine's Defenders Day holiday on Friday by promising victory over Russia and freedom for Ukraine.He said everything that had been taken away from Ukraine would be returned, and no soldier left in captivity."It seems that the current enemy in its evil unites all the enemies of our statehood that we faced before," Zelenskiy said on the wooded hills outside the village of Vitachyv, site of an historic military outpost overlooking the Dnipro River.Register now for FREE unlimited access to Reuters.com"By defeating this enemy, we will respond to all enemies who encroached on Ukraine - on those who lived, who live and who will live on our land.Ukrainian forces have made advances in recent weeks, but Russia has carried out heavy air strikes that hit energy facilities as well as apartment blocks this week."