Identifying the 1945 International Organization

The question asks to identify the international organization founded in 1945 with the specific goals of promoting peace, security, and cooperation among nations.

Analyzing the Options

• World Trade Organization (WTO): Established in 1995 to regulate international trade. Does not match the founding year or primary purpose.
• North Atlantic Treaty Organization (NATO): Founded in 1949 as a military alliance primarily focused on collective defense. Does not match the founding year or core purpose.
• International Monetary Fund (IMF): Established in 1944 (operational 1945) primarily to ensure the stability of the international monetary system. While related to cooperation, its main focus is financial.
• United Nations (UN): Founded in 1945 immediately following World War II. Its primary mission is to maintain international peace and security, develop friendly relations among nations, and promote social progress, international law, and human rights. This perfectly matches the question's criteria.

Conclusion

Based on the founding year (1945) and its core objectives (peace, security, cooperation), the United Nations (UN) is the correct organization.