ABC News’ Martha Raddatz reports from Ukraine and goes one-on-one with President Volodymyr Zelenskyy as the war reaches 500 days, and Ukraine takes on a major counter-offensive against Russia. #news #abcnews #ukraine #martharaddatz #volodymyrzelensky SUBSCRIBE to ABC News on YouTube: bit.ly/2vZb6yP Latest updates: abcnews.go.com Watch FULL EPISODES on Hulu: abcn.ws/3bzvQQn