What is the core proposition of the democratic peace theory?

The core proposition of the democratic peace theory is that democratic nations are less likely to engage in conflict with one another. This theory suggests that the principles of democracy—such as political accountability, the rule of law, and respect for civil liberties—create a social and political environment conducive to peaceful relations. Democracies are more likely to resolve disputes through negotiation and diplomacy rather than military action. This is supported by various historical analyses showing that conflicts between democracies are rare compared to conflicts involving authoritarian regimes.

The other options do not accurately reflect the essence of the democratic peace theory. While democratic nations might choose not to ally with authoritarian countries or might support free trade agreements, these points do not directly address the relationship between democratic states and the likelihood of conflict. The notion that democracies prefer military solutions over diplomatic ones also contradicts the very premise of the democratic peace theory, which emphasizes resolution through peaceful means.