To amend section 4 of the Internal Security Act of 1950.

Permits the President to restrict travel by citizens and nationals of the United States to, in, or through any country or area whose military forces are engaged in armed conflict with the military forces of the United States. Provides that travel to such restricted country or area by any person may be authorized by the President when he deems such travel to be in the national interest. Makes it unlawful for any citizen or national of the United States to willfully and without authorization to travel to such restricted country or area.