What is a forced union state?

A forced union state, often referred to as a "forced union" or "compulsory union," is a political entity where regions or territories are compelled to remain part of a larger union against the will of some of its constituents. This can occur through military intervention, political coercion, or other means that undermine the autonomy of local populations. The term is often used in the context of historical or contemporary situations where disputes over sovereignty and self-determination arise. Examples include regions integrated into a nation-state despite significant resistance from local populations.