How does democratic peace theory explain why democracies tend not to fight one another?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Democratic peace theory posits that democratic states rarely, if ever, wage war against one another. While the phenomenon is widely accepted as a historical fact, scholars offer two primary explanations for why this peace exists:1

Normative Explanation: This view suggests that democratic societies share a political culture that prioritizes settling disputes through peaceful means. When two democracies interact, their leaders and citizens expect each other to adhere to these norms, leading them to avoid violence even during conflicts.1
Structural (Institutional) Explanation: This perspective emphasizes that democratic institutions, such as the separation of powers and checks and balances, constrain leaders from initiating war rashly. Because these systems make the decision-making process slower and more transparent, leaders do not fear surprise attacks from other democracies, providing sufficient time for diplomacy to resolve tensions.1

These explanations contrast with realism, which argues that the anarchic structure of the international system dictates state behavior regardless of internal regime types.1