Which international body, formed after WWII, was tasked with maintaining international peace and security?

• A. League of Nations
• B. NATO
• C. World Health Organization
• D. United Nations

Answer: (D)

After World War II, the international body created to maintain international peace and security is the United Nations. It was established in 1945 to replace the failed League of Nations and to provide a global forum where nations can resolve disputes peacefully and coordinate action to prevent wars. Its primary mechanism for upholding peace is the Security Council, which can authorize peacekeeping missions, impose sanctions, or take other collective measures. The other options don’t fit as well: the League of Nations existed before and proved ineffective at stopping aggression leading up to WWII; NATO is a Cold War-era military alliance focused on collective defense rather than a general framework for maintaining peace and security; and the World Health Organization is a specialized agency focused on global health. The United Nations uniquely combines diplomacy, conflict resolution, and peacekeeping responsibilities on a global scale.