Americans planning an overseas trip should check whether their destination carries the US State Department’s strongest travel warning. As of November 8, 24 destinations are listed at Level 4, the “Do Not Travel” category.

This designation signals potentially life-threatening conditions. The State Department warns that US authorities may have little or no ability to assist Americans facing an emergency in these locations. It advises avoiding travel there, or leaving when it is safe to do so.

The destinations currently carrying the highest warning are:

Afghanistan

Belarus

Burkina Faso

Burma (Myanmar)

Central African Republic

Chad

Democratic Republic of the Congo

Gaza

Haiti

Iran

Iraq

Lebanon

Libya

Mali

Niger

North Korea

Russia

Somalia

South Sudan

Sudan

Syria

Uganda

Ukraine

Yemen

Source: US State Department travel advisory directory.

The reasons behind the warnings vary. Terrorism and unrest feature prominently, alongside crime, kidnapping, health risks, and wrongful detention. North Korea’s listed indicators are wrongful detention and the department’s “Other” category. Gaza’s advisory identifies terrorism, unrest and health risks, including limited healthcare infrastructure.

Several Middle Eastern destinations have recently updated advisories. The directory records October 23, 2026, issue dates for Iran, Iraq, Lebanon, Syria and Yemen. Belarus and Russia carry December 29, 2025, dates, while North Korea’s advisory is dated April 29, 2025. These dates identify the listed advisories; they should not be interpreted as the first time a destination received a warning.

An advisory update also does not necessarily mean the warning level has increased. For example, Uganda’s June 4, 2026, update retained its Level 4 rating while revising the summary and removing the “Other” risk indicator. Its advisory still lists crime, health, terrorism, and unrest.

Travelers should also watch for Level 3 advisories, which urge Americans to reconsider a trip because of serious safety or security concerns. Level 4 is the highest category in the four-level system.

Before booking or departing, consult the destination’s full advisory on the State Department website. Conditions can change, and the detailed guidance provides context that a headline or destination list cannot capture.