National boundaries


Borders are usually defined as geographical boundaries, imposed either by features such as oceans and terrain, or by political entities such as governments, sovereign states, federated states, and other subnational entities. Political borders can be established through warfare, colonization, or mutual agreements between the political entities that reside in those areas.

Some borders—such as most states' internal administrative borders, or inter-state borders within the Schengen Area—are open and completely unguarded. Most external political borders are partially or fully controlled, and may be crossed legally only at designated border checkpoints; adjacent border zones may also be controlled.

Buffer zones may be set up on borders between belligerent entities to lower the risk of escalation. While border refers to the boundary itself, the area around the border is called the frontier.

Broader Problems:
Parochial national interests
Government Frontiers
Related UN Sustainable Development Goals:
GOAL 16: Peace and Justice Strong Institutions
Problem Type:
F: Fuzzy exceptional problems
Date of last update
04.10.2020 – 22:48 CEST