Many failed states struggle with political instability and economic collapse.

Many nation-states have their own unique cultures and traditions.

The ancient world was home to many powerful city states.

The blue states are known for their progressive policies.

Bound states are stable quantum states formed by particles that are confined within a potential well.

The member states of the European Union meet regularly to discuss important issues.

Many European countries are considered welfare states.

The states of affairs in the country are constantly changing.

The flyover states are often overlooked by coastal residents.

Many island states are vulnerable to rising sea levels.