Lịch sử Liên Hợp Quốc và Trật tự thế giới

History of the United Nations and the Modern World Order

Keywords: United Nations, UN Charter, Yalta Conference, world order, multipolarity, peace and security, Vietnam UN membership, economic and scientific power, regional alliances

1. The Founding of the United Nations

The United Nations (UN) officially came into existence on 24 October 1945, the day the UN Charter was ratified by the required number of member states. This date marks the birth of the international organization created to prevent the recurrence of global conflicts after World War II.

Key points to remember:

• The Charter was signed on 26 June 1945 in San Francisco, but it only became effective after the required 35 nations ratified it.
• 24 October is now celebrated as United Nations Day, a reminder of the global commitment to peace.
• The UN’s primary purpose is to maintain international peace and security, a theme that recurs throughout its charter.

2. Core Principles of UN Operations

The UN operates on a set of foundational principles that guide its actions. Among the most important are:

• Equality of sovereign rights for all member states.
• Peaceful settlement of disputes through negotiation, mediation, and arbitration.
• Non‑intervention in the internal affairs of states.

What is not a UN principle? The organization does not focus on promoting the domestic economic development of each individual country. While the UN supports sustainable development, it does so through international cooperation, not by directing national economic policies.

3. The Yalta Conference and the Birth of the UN

In February 1945, the leaders of the United States, the United Kingdom, and the Soviet Union met at Yalta. One of the pivotal outcomes of this conference was the agreement to establish the United Nations as a mechanism for maintaining post‑war peace.

Key outcomes of Yalta:

• Commitment to create a permanent international body (the UN) with a Security Council comprising the major Allied powers.
• Division of Europe into spheres of influence, which later shaped the early Cold War bipolar world order.

Remember the mnemonic: Yalta = “Y” for “United Nations”.

4. From Bipolar to Multipolar World

After Yalta, the world initially settled into a two‑pole (bipolar) order dominated by the United States and the Soviet Union. This structure persisted throughout the Cold War, influencing global politics, economics, and security.

In the post‑Cold‑War era, the international system has become increasingly multipolar. However, the legacy of the Yalta agreement still informs the balance of power, especially as emerging powers seek greater influence.

5. The Pillars of National Power in a Multipolar Era

In today’s complex international environment, a nation’s overall strength is no longer measured solely by military size or territorial extent. The decisive factor is the combined economic and scientific‑technical capacity of a country.

• Economic strength provides the resources needed for defense, development, and diplomatic initiatives.
• Science and technology drive innovation, enhance productivity, and give a country a competitive edge in fields such as cyber‑security, space, and biotechnology.

Thus, the modern “trụ cột” (pillar) of national power is the synergy of wealth and knowledge.

6. Vietnam’s Entry into the United Nations

Vietnam became a member of the United Nations on 1977. This accession followed the reunification of North and South Vietnam and marked the country’s integration into the global diplomatic community.

Key milestones:

• 1975 – End of the Vietnam War and reunification.
• 1977 – Admission to the UN, enabling Vietnam to participate in international debates on peace, development, and human rights.

Remember: Vietnam’s UN membership coincides with the year of national reunification – 1977.

7. Strategies for Small and Medium‑Sized States in a Multipolar World

Countries that are neither great powers nor isolated micro‑states can enhance their international standing by joining regional and global alliances. This approach offers several advantages:

• Collective security arrangements reduce the need for costly military buildup.
• Economic cooperation within alliances opens markets, attracts investment, and fosters technology transfer.
• Diplomatic coordination amplifies a small state’s voice in international forums such as the UN General Assembly.

In contrast, strategies based on isolation or unilateral military expansion are less effective and can jeopardize long‑term stability.

8. Prioritizing Peace and Security in the UN Charter

The UN Charter explicitly places maintaining international peace and security as the foremost objective. All other goals—human rights, economic development, and friendly relations—are considered secondary and contingent upon a stable, peaceful environment.

Why this hierarchy?

• Peace provides the necessary conditions for development and cooperation.
• Security mechanisms, such as the Security Council, are designed to address threats swiftly, preventing escalation.
• Historical experience shows that conflict undermines every other aspect of international relations.

Remember the mantra: “Peace is the foundation for all other UN goals.”

9. Review and Self‑Assessment

Test your understanding of the concepts covered:

• When did the United Nations officially come into existence? (Answer: 24 October 1945)
• Which principle is NOT part of the UN’s core operating principles? (Answer: Promoting domestic economic development)
• What major decision emerged from the Yalta Conference? (Answer: Creation of the United Nations)
• In the modern world order, what constitutes the main pillar of a nation’s power? (Answer: Economic and scientific‑technical capacity)
• Which world order resulted directly from Yalta’s agreements? (Answer: Bipolar world order)
• In which year did Vietnam join the UN? (Answer: 1977)
• How can small and medium states increase their influence today? (Answer: By joining regional and international alliances)
• What is the top priority of the UN Charter? (Answer: Maintaining peace and security)

Use these questions to gauge your mastery before moving on to deeper studies of international relations and diplomatic history.