The leading international relations website E-International Relations describes the realist school of international relations thusly:
|“|| The first assumption of realism is that the nation-state (usually abbreviated to ‘state’) is the principle actor in international relations. Other bodies exist, such as individuals and organisations, but their power is limited. Second, the state is a unitary actor. National interests, especially in times of war, lead the state to speak and act with one voice. Third, decision-makers are rational actors in the sense that rational decision-making leads to the pursuit of the national interest...
Realism is a theory that claims to explain the reality of international politics. It emphasises the constraints on politics that result from humankind's egoistic nature and the absence of a central authority above the state.
- ↑ Introducing Realism in International Relations Theory by Sandrina Antunes and Isabel Camisão, February 27, 2018