23 Countries the U.S. Warns Americans Against Visiting Now: The Full Story

15. Sudan: Widespread Violence & Civil War

The "Do Not Travel" advisory for Sudan reflects the current devastating civil war between rival military factions. Widespread fighting, indiscriminate shelling, rampant looting, and collapse of essential services make the country incredibly dangerous. Airports are often closed, and overland travel is perilous. The full story is a nation engulfed in a brutal conflict, leading to a catastrophic humanitarian situation and extreme risk for any foreigners remaining or entering.