Frontier: A frontier refers to an area where borders are not clearly defined or are disputed. It can be a region of potential conflict or negotiation between neighboring states.
Territorial Integrity: Territorial integrity is the principle that states should respect and preserve the boundaries and territorial integrity of other nations. It emphasizes non-interference in the internal affairs of other states.
Border Disputes: Border disputes occur when two or more countries have conflicting claims over a specific territory or boundary. These disputes often result in diplomatic negotiations, mediation, or even armed conflicts.