Vassal state
A vassal state is a state dependent upon or tributary to another state, often after a war.In ancient history large empires often created buffer states to protect themselves against an unexpected invasion.
The ancient kingdom of Macedon in present-day northern Greece was a vassal state of the Persian Empire.
List of vassal states
This is a list of vassal states throughout history. The vassal state itself is named first with their overlord between brackets.
