Western countries have rejected President Volodymyr Zelensky’s call for a no-fly zone over Ukraine due to concerns about provoking a more direct confrontation with Russian forces, especially after President Vladimir Putin’s threat to resort to nuclear weapons. CNN’s Nina dos Santos has more on how the West is analyzing those threats.

(SOURCE) https://www.cnn.com/videos/world/2022/03/09/putin-nuclear-threats-ukraine-russia-dos-santos-ovn-intl-pkg-vpx.cnn