The art and science of maintaining peaceful relationships between nations, groups, or individuals

Spreading a nation's territorial or economic control beyond its borders

The way a country interacts politically and economically with other countries

When a strong country increases its power by gaining control over other areas of the world

A policy of avoiding involvement in world affairs

To remove from power by force

A small country that is controlled and protected by a larger one

A region over which a country claims certain exclusive rights but has no real power

An area of land that belongs to or is controlled by a government; part of the United States that's not a state.

Official agreement between groups of people or nations