Day 5: Underlying Causes of War

International Relations Course • Part 2 of 2

Three Levels of Analysis

Understanding war requires examining causes at multiple levels of human organization:

🧠 Individual

Leaders, psychology, decision-making

🏛️ State

Economic systems, political institutions

🌍 International

Anarchy, power dynamics, cooperation

🧠Individual Level Causes

People, especially leaders, decide if a country goes to war. They don’t always make these choices logically.

👁️Misperception & Crisis Escalation

Leaders may see situations incorrectly or struggle under stress, leading to flawed judgment and escalation.

Example: US leaders wrongly believed Iraq had WMDs and that invasion would be easy

👥Groupthink

When groups agree without questioning, they make bad decisions by discouraging individual responsibility.

Example: 1961 Bay of Pigs invasion – nobody wanted to disagree, plan failed

🎯Over-Optimism

Leaders often think they can win wars quickly, leading to excessive confidence and risky behavior.

Example: Pakistan vs India (1999) – felt powerful with nuclear weapons

⚧️Gender Differences

Studies suggest men may be more confident about winning conflicts and more likely to initiate wars. Countries treating women better tend to be more peaceful.

Key Point: Individual choices, biases, and psychological factors significantly influence decisions that lead to war.

🏛️State Level Causes

Two primary state-level factors influence a nation’s inclination toward peace or war:

💰Economic Systems

⚒️Marxist Perspective

Capitalist economies may be more prone to conflict due to:

  • Underpaying workers
  • Competing for colonies
  • Lenin’s interpretation of WWI causes

🕊️Liberal Perspective

Capitalist countries prefer peace because they desire open trade and economic prosperity through collaboration rather than conquest.

🗳️Political Institutions

🤝Democratic Peace Thesis

Democracies are less likely to engage in war with one another. Two explanations:

⚖️Institutional Constraints

Checks within the system prevent leaders from unilaterally declaring war. Citizens who bear war costs can elect and control leaders.

🎭Normative Constraints

Democratic leaders’ values and beliefs favor compromise and peace, while authoritarian leaders may use force for personal gain.

⚠️Eisenhower’s Warning (1961)

Military conflict can undermine democratic institutions. Risk of “garrison state” where life becomes heavily militarized due to military-industrial complex influence.

🔍Democratic Peace Limitations

  • Democracies often fight non-democracies
  • No consensus on why democratic peace occurs
  • Policy misinterpretations can still lead to war

🌍International Level Causes

🌀International Anarchy

The lack of world government creates conditions that can lead to war in two ways:

🚪Permissive Condition

Allows other problems or feelings to push countries toward war without higher authority to intervene.

Active Propellant

Actively pushes countries to take actions that make war more likely through mistrust and uncertainty.

🕵️How Anarchy Drives Conflict

🎭Concealment & Deception

Countries hide their true plans and power, making peaceful problem-solving difficult.

Example: Iraq’s leader tried to look strong after losing war, causing others to see him as threat

🤝Commitment Problems

Without world government, countries don’t trust each other to keep promises. May choose to fight now rather than risk being attacked later when weaker.

🎲The Prisoner’s Dilemma

A situation showing why groups might not cooperate even when it’s in their best interest:

🔒 The Setup

Two criminals caught, can’t communicate, each decision affects both outcomes

🤔 The Dilemma

Stay quiet or blame the other? Each fears the other will betray them first

Real-World Example: U.S. and Iraq in 2003 couldn’t agree because they didn’t trust each other. Each feared the other would break any deal, leading to war despite possible peaceful solutions.

⚖️UN Limitations

The United Nations tries to help solve problems peacefully, but can’t always protect countries or punish those who start violence, leaving leaders to worry about war.

Key Terms Glossary

Misperception (誤解)
Incorrect understanding of situations leading to flawed decisions and actions
Crisis Escalation (危機のエスカレーション)
Process by which conflicts intensify, increasing possibility of violent outcomes
Groupthink (集団思考)
Group decision-making that discourages individual responsibility, leading to poor choices
Over-Optimism (過度の楽観)
Excessive confidence not grounded in reality, leading to risky behavior
Democratic Peace Thesis
Theory that democracies are less likely to fight each other due to institutional and normative constraints
International Anarchy (無政府状態)
Absence of global governing authority, creating conditions for conflict between states
Prisoner’s Dilemma (囚人のジレンマ)
Situation showing why individuals might not cooperate even when it’s in their best interest
Military-Industrial Complex
Network of military, defense industry, and government relationships that can influence policy toward conflict