A border is a geographic boundary that separates different areas, such as countries, states, or regions. Borders define the sovereignty and jurisdiction of a government or authority and play a critical role in international relations, trade, security, and cultural exchanges. The establishment and maintenance of borders involves legal agreements, diplomatic negotiations, and sometimes international arbitration. They are essential to the organization of the world’s political landscape.

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• Yıldız, M. (2023). The Topology of Nation-State: Borders, Territoriality, Sovereignty and War. Gazi Akademik Bakış, 16(1), 1–20.