The relevance of the United Nations is a matter of ongoing debate, and it's more of a normative/political question than a factual one I can "search" my way to a definitive answer on. That said, I can lay out the key arguments on both sides and some current context to help you think it through.
Arguments that the UN remains relevant:
•No alternative global forum exists. It's the only institution where nearly every country on Earth (193 member states) has a seat at the table to discuss collective problems—climate change, pandemics, nuclear proliferation, migration, etc.
•Humanitarian and development work continues at scale. Agencies like UNHCR, WFP, UNICEF, and WHO deliver food, vaccines, refugee support, and disaster relief to millions of people annually, often in places no single country could or would act alone.
•Peacekeeping, while imperfect, still operates in multiple conflict zones, and the UN remains a key venue for diplomacy and ceasefire negotiations even when it can't stop wars outright.
•International law and norms (human rights frameworks, the Law of the Sea, climate accords like Paris) are often negotiated and housed under the UN umbrella.
Arguments that its relevance has eroded:
•Security Council paralysis. The veto power of the five permanent members (US, UK, France, Russia, China) has repeatedly blocked action on major crises—Syria, Ukraine, Gaza—leading critics to argue the UN is structurally incapable of stopping great-power-linked conflicts.
•Funding and political crises. The UN has faced significant budget shortfalls and member states (including major funders like the US) withholding or cutting contributions, forcing staff cuts and program reductions.
•Legitimacy questions. Many argue the Security Council's structure reflects a 1945 power balance, not today's world, fueling calls for reform (adding India, Brazil, African nations, etc.) that have gone nowhere for decades.
•Enforcement gaps. The UN can pass resolutions, but has no independent military or police force to compel compliance—it depends on member states' willingness to act.
A fair summary: The UN is probably less a single verdict of "relevant" or "irrelevant" than an institution that's indispensable in some areas (humanitarian aid, health, development, certain diplomacy) while increasingly sidelined in others (great-power conflict resolution, Security Council action). Whether you view it as "still relevant" often depends on which function of the UN you're evaluating—and what standard you're holding it to.
If you want, I can look into a specific angle—like recent UN funding cuts, a particular conflict's handling (Gaza, Ukraine, Sudan), reform proposals, or how a particular country is engaging with it in 2025-2026—happy to dig into current reporting on that.