Definition

A formal written agreement between nations on matters like trade, military cooperation, or human rights.

Example Usage

The environmental treaty required signatory nations to reduce carbon emissions by 40% over ten years.

Origin

From Old French 'traité,' used in diplomacy since medieval times

Fun Fact

The Treaty of Westphalia (1648) essentially created the modern international system of sovereign nation-states.

Source: International law and diplomacy terminology

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