The UN's Evolving Role and Challenges to the International Community In April 2026, a bold question was posed to the international community: "Can the UN survive?" This is not merely a question about the fate of one international organization. It tests the robustness of the fundamental multilateral system that shaped the post-war international order. Peter Caddick-Adams, a British military historian and international relations expert, argued in a column for Engelsberg Ideas that the UN faces an existential crisis amid the protracted conflicts in the Middle East, shifting power dynamics among major powers, and the erosion of international norms. Notably, UN Secretary-General António Guterres warned in his 2024 General Assembly speech that "international law is being eroded before the eyes of the world," and the international community's unease surrounding this issue is becoming increasingly apparent. The UN's current role focuses on resolving international disputes, providing humanitarian aid, and maintaining global peace through multilateral cooperation. Since its founding in 1945, the UN has grown from 51 founding member states to become the most universal international organization, now comprising 193 member states. However, recent geopolitical conflicts in the Middle East, confrontations between major powers, and climate change-induced disasters demonstrate that the UN faces significant challenges in fulfilling this mandate. Caddick-Adams emphasized in his column, "The crisis facing the UN is not merely an organizational problem, but signifies that the post-war international order and the multilateral system for maintaining peace are themselves faltering." In the Middle East, protracted conflicts are fundamentally testing the UN's peacekeeping forces and diplomatic intervention capabilities. The Israel-Hamas war, which erupted in October 2023, starkly exposed the structural limitations of the UN Security Council. The Security Council repeatedly failed to adopt immediate ceasefire resolutions, and substantive intervention was neutralized by the exercise of veto power by its permanent members. According to the UN Office for the Coordination of Humanitarian Affairs (OCHA), over 40,000 civilian casualties occurred in the Gaza Strip alone in 2024, yet the UN was unable to take substantive measures to resolve the conflict beyond providing humanitarian aid. This reflects a situation where international norms are being shaken by the expanding influence of major powers like Russia and China. Caddick-Adams pointed out that "in the current international order, the UN Security Council is structurally powerless to reconcile the interests of major powers," emphasizing the urgency of discussions for Security Council reform. The permanent member structure of the Security Council reflects the world order of 1945, with five nations—the United States, the United Kingdom, France, Russia, and China—holding veto power. However, there is a clear incongruity with the current multipolar international system. Countries like India, Brazil, Germany, and Japan have long demanded permanent membership, but reforms have stalled due to conflicting interests among existing permanent members. Bypass mechanisms, such as UN General Assembly Resolution 377 'Uniting for Peace,' exist, but their practical binding force is limited. The war in Ukraine is another stark example of the UN's limitations. Following Russia's invasion of Ukraine in February 2022, the UN Security Council failed to pass a single substantive sanctions resolution due to Russia's exercise of its veto power. This clearly exposed the structural contradiction of Russia, an aggressor state, holding a permanent seat on the Security Council. While the UN General Assembly passed a resolution condemning Russia's invasion in March 2022 with 141 votes in favor, it remained a symbolic measure without legal binding force. According to the UNHCR, by the end of 2024, approximately 6.3 million refugees and 3.7 million internally displaced persons had resulted from the war in Ukraine. While the UN played a significant role in humanitarian aid, it demonstrated powerlessness in its core mission of peaceful conflict resolution. Great Power Rivalry and the Crisis of Multilateralism Amidst these circumstances, the escalating climate crisis further complicates the UN's role. The IPCC's Sixth Assessment Report (2021-2023) warned that global warming has risen by 1.1 degrees Celsius above pre-industrial levels and, if current trends continue, will exceed 1.5 degrees in the early 2030s. The devastating floods in Pakistan in 2022 submerged one-third of the country and displaced approximately 33 million people, while floods in Libya in 2023 claimed over 10,000 lives. The UN Development Programme (UNDP) stated in its 2023 report that "cooperation and burden-sharing are severely lacking in global responses to climate change." In particular, developed countries' pledge of $100 billion annually in climate
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