23 Countries the U.S. Warns Americans Against Visiting Now: The Full Story
19. Yemen: War, Terrorism & Famine

Yemen is under a "Do Not Travel" advisory due to active armed conflict, terrorism, kidnapping, and a devastating humanitarian crisis, including widespread famine and disease. Houthi forces, al-Qaida, and ISIS affiliates operate in the country. There is no U.S. diplomatic presence to assist citizens. The full story is a nation shattered by years of war, making it exceptionally dangerous and inaccessible.