A passport is required but no visa is needed for tourist or business stays of up to three months. Dual nationals may be subject to Greek laws, which impose special obligations. U.S. citizens who are also considered to be Greek citizens may be subject to compulsory Greek military service and other aspects of Greek law while in Greece. Greek-Americans should inquire at the Greek Embassy or a Greek consulate to determine their status before traveling to Greece. In some instances, dual nationality may hamper U.S. Government efforts to provide protection abroad.
Civil disorder is rare.
However, several active terrorist groups, including the 317 November2 organization, have at times targeted U.S. Government and U.S. commercial interests. Terrorist activities against U.S. Government and commercial interests increased during the NATO air operations against Serbia-Montenegro. However, there have been no specific threats against private American citizens, or tourist facilities. Travelers are advised to review their security practices and to be alert to their surroundings. The usual safety precautions practiced in any urban area ought to be practiced during a visit to Greece.