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

17. Ukraine: Active Armed Conflict with Russia

Ukraine remains under a "Do Not Travel" advisory due to Russia's full-scale invasion and ongoing war. Active combat, missile strikes, and shelling occur throughout the country, including in areas far from the front lines. The security situation is highly volatile and unpredictable. The U.S. Embassy's ability to provide services is extremely limited. The full story is an active, high-intensity war zone with significant risk to civilian lives.