national boundary

• borderOuter edge or limit
• frontierEdge of settlement
• checkpointInspection station on route
• crossingPoint where paths intersect
• passportGovernment-issued travel credential

customs · territory · demarcation · sovereignty · fence · wall · barrier · borderland · visa · immigration · patrol · disputed · treaty · map · line · divide · jurisdiction · foreign

• boundary mapsboundary line, boundary lines, political map, national borders, political boundary
• bordersborder, boundary, border crossing, national borders, boundary line