Which development best captures a key outcome of WWI for international governance?

• A. It reinforced old colonial orders and reduced cooperation
• B. It strengthened bilateral diplomacy as the sole means of interaction
• C. It led to the League of Nations and established norms around war conduct, diplomacy, and collective security
• D. It eliminated the concept of collective security

Answer: (C)

After World War I, nations moved toward organizing peace through international institutions and law rather than relying solely on power politics. The key outcome is the creation of the League of Nations, born from Wilson’s Fourteen Points and the Versailles settlement. This new framework established a system of collective security and formalized diplomacy: member states pledged to settle disputes peacefully, use arbitration when possible, and respond together against aggression. It also set norms for how wars should be conducted and how states interact—favoring multilateral diplomacy, dispute resolution through agreed mechanisms, and sanctions or other collective actions to deter war.

This is why it’s the best answer: it captures the shift from isolated, bilateral dealings and old colonial arrangements toward a multilateral, rule-based approach to maintaining international peace. The other ideas don’t fit because they either misrepresent the postwar shift (relying on old colonial orders or purely bilateral diplomacy) or deny the very concept of collective security that the League introduced.