Australia

Learn about the U.S. relationship to countries around the world.  You must have a valid U.S. passport and a visa or an approved Electronic Travel Authority (ETA) to enter Australia. Most U.S. passport holders traveling to Australia for tourism or business purposes for...

Slovakia

Learn about the U.S. relationship to countries around the world.Visit the Embassy of the Slovak Republic website for the most current visa information and CDC Travel Destination page for immunization information.Slovakia is a party to the Schengen Agreement. This...

Uruguay

Learn about the U.S. relationship to countries around the world.You do not need a visa for a visit of less than 90 days if you are traveling on a tourist passport. You must have a valid visa if you are traveling on a diplomatic or official passport. Visit the Embassy...

Vietnam

Learn about the U.S. relationship to countries around the world.Entry Requirements: You must have a valid passport and a visa (or pre-approval for a visa on arrival) to enter Vietnam. Your passport must be valid for six months beyond your planned stay, and you must...

Sudan

Learn about the U.S. relationship to countries around the world.Requirements for Entry:PassportVisaWorld Health Organization (WHO) card with yellow fever vaccination when arriving from a yellow fever infected areaVisas:Obtain your visa before traveling. Visit...