The Influence of Domestic Politics on International Relations

2. Theoretical Perspectives on Domestic Politics and International Relations

Different schools of thought in international relations offer varying explanations of the role domestic politics plays in shaping state behavior.

Realism traditionally downplays domestic politics, arguing that the international system’s anarchical structure compels states to prioritize survival and power. From this perspective, domestic political differences matter little because all states respond similarly to external threats. However, even realists acknowledge that domestic capacity, such as economic strength and political stability, affects a state’s ability to project power internationally.

Liberal theories, in contrast, place domestic politics at the center of international relations. Liberals argue that state preferences are formed internally and reflect the interests of domestic actors, including political parties, economic groups, and civil society. According to this view, democratic states are more likely to cooperate with one another and less likely to engage in war, an idea captured by the democratic peace theory.

Constructivist approaches emphasize the role of ideas, identities, and norms that emerge from domestic societies. National identity, political culture, and historical narratives shape how states perceive threats and opportunities, influencing foreign policy behavior.

Together, these perspectives highlight that domestic politics is not separate from international relations but deeply embedded within it.