One nation's government that is classified as a monarchy, with a king as the chief of state and head of government, is Saudi Arabia.
A nation that has a government classified as a monarchy, with a king as both the chief of state and head of government is called a "absolute monarchy." In this form of government, the king or queen holds supreme authority and may exercise their power without constraint. However, it's worth noting that many monarchies have evolved over time and have various levels of constitutional constraints and power-sharing arrangements.
