World Leaders Gather At UN As Wars, AI, Climate Crisis And Global Divisions Test International Cooperation

JD GLOBAL MEDIA | SOUTH AFRICA

Published: 21 September 2026

WORLD LEADERS ARRIVE IN NEW YORK FOR HIGH-STAKES UN WEEK

World leaders are gathering in New York for the United Nations General Assembly's high-level week, with wars, humanitarian emergencies, artificial intelligence, climate change, economic instability and growing geopolitical divisions dominating the international agenda.

The gathering comes at a particularly difficult moment for international diplomacy.

Conflicts and major security crises are continuing in Iran, Gaza, Ukraine, Sudan, the Democratic Republic of Congo and Myanmar, while governments are also confronting rising economic pressures, disrupted trade routes, climate-related disasters and rapid advances in artificial intelligence.

Nearly 130 heads of state and government are expected to attend the high-level week in person, according to the United Nations.

The 81st session is operating under the theme “Restoring trust, managing transformation: a United Nations that delivers for all.”

The annual gathering provides one of the few occasions when such a large number of national leaders, foreign ministers and senior diplomats are in the same place at the same time.

The central question facing the meeting is whether governments can find enough common ground to address crises that increasingly cross national borders.

A WORLD FACING MULTIPLE WARS

The international environment surrounding this year's gathering is being shaped by several simultaneous conflicts.

The war involving Iran and the United States and its allies remains a major issue for governments in the Middle East and beyond.

The continuing conflict in Gaza remains another major humanitarian and diplomatic concern.

The war in Ukraine has entered another phase of intense long-range attacks, with Russia and Ukraine continuing to strike targets far from the immediate front lines.

Elsewhere, conflicts in Sudan, the Democratic Republic of Congo and Myanmar continue to generate humanitarian needs and political instability.

These crises are taking place simultaneously, placing pressure on the international system's capacity to respond.

The United Nations remains one of the principal forums where governments can communicate directly, negotiate agreements and raise international concerns.

But the organisation also faces disagreements among its most powerful member states.

Those divisions can make it difficult to achieve unified action on major security questions.

THE GENERAL DEBATE BEGINS ON 22 SEPTEMBER

Although high-level week begins on Monday, the formal General Debate of the 81st session starts on 22 September.

The debate will run from 22 to 26 September and resume on 28 September.

Heads of state and government and other senior representatives will address the General Assembly and outline their countries' priorities on international issues.

The speeches traditionally provide governments with an opportunity to present their positions on wars, economic conditions, international law, development, climate change and other global issues.

This year's debate is expected to place particular attention on the deterioration of international security and the question of whether multilateral institutions remain capable of managing increasingly complex crises.

THE UNITED NATIONS IS ALSO FACING A CRISIS OF TRUST

The theme of restoring trust reflects concerns about confidence in international institutions.

The United Nations was established after the Second World War with the objective of creating a framework through which countries could address international problems collectively.

More than eight decades later, the organisation continues to provide a forum for diplomacy, humanitarian coordination and international negotiations.

But disagreements among major powers have repeatedly limited the ability of the Security Council to respond collectively to conflicts.

The General Assembly provides a broader platform because all 193 UN member states are represented and each has one vote.

However, General Assembly resolutions do not have the same enforcement mechanisms as binding Security Council decisions.

That difference means that political agreement in New York does not automatically translate into changes on the ground.

The challenge for leaders is therefore not only reaching agreement but also finding mechanisms through which commitments can be implemented.

AI HAS BECOME A GLOBAL SECURITY ISSUE

Artificial intelligence is emerging as one of the newer issues confronting the international system.

AI was once largely treated as a technology and economic subject.

It is now increasingly discussed in connection with national security, misinformation, cyber operations, employment, military technology and the future of international governance.

The rapid development of advanced AI systems has created questions that national governments cannot easily address individually.

AI systems operate across borders.

Companies developing them may be based in one country while their users are distributed globally.

Data may be processed across multiple jurisdictions.

The technology can also be incorporated into systems that affect security and economic competition.

This creates pressure for governments to develop common principles and communication channels.

The United Nations high-level week includes discussions related to AI governance, alongside broader debates on technology and international cooperation.

WHY AI GOVERNANCE IS BECOMING URGENT

One of the concerns facing governments is the speed at which AI capabilities are developing compared with the speed of international regulation.

Governments traditionally create laws and international agreements through lengthy negotiations.

Technology can evolve much faster.

A system that is considered advanced today can be overtaken by a newer model within a relatively short period.

This creates difficulties for policymakers.

If regulations are too specific, they may become outdated.

If regulations are too broad, they may fail to address particular risks.

The international discussion is therefore increasingly focused on establishing principles that can adapt as technology changes.

Questions include how AI systems should be tested, how risks should be disclosed, how personal information should be protected and who should be accountable when AI causes harm.

AI AND THE FUTURE OF WARFARE

The security dimension of AI is particularly significant.

Artificial intelligence can potentially support intelligence analysis, autonomous systems, cyber operations, surveillance and decision-support tools.

This has raised concerns about how increasingly automated military technologies should be controlled.

International governments face difficult questions about the appropriate role of humans in decisions involving the use of force.

The issue becomes more complicated when military systems can process large quantities of information and react faster than human operators.

The United Nations is therefore becoming one of the venues where countries can discuss international norms around emerging military technologies.

Agreement is difficult because countries have different security interests and different levels of technological capability.

Nevertheless, the growing use of AI in security systems makes the issue increasingly difficult to ignore.

CLIMATE CHANGE REMAINS ANOTHER CENTRAL ISSUE

The General Assembly week is also addressing climate change.

The United Nations has scheduled a high-level meeting on climate action and the just transition for 23 September.

The meeting is expected to bring together leaders from major economies, developing countries, vulnerable states and major energy producers and consumers.

Climate change is increasingly being experienced through extreme weather, rising temperatures, floods, droughts, wildfires and other environmental shocks.

For developing countries, the consequences can be especially serious because governments may have fewer financial resources available for adaptation and recovery.

Climate change also intersects with food security, migration, infrastructure and economic development.

That makes it difficult to treat the climate crisis as a separate environmental issue.

SEA-LEVEL RISE WILL RECEIVE SPECIAL ATTENTION

Another high-level meeting is scheduled for 24 September to address the existential threats associated with sea-level rise.

Small island states and low-lying coastal communities are particularly vulnerable.

Rising seas can threaten homes, infrastructure, freshwater supplies, agriculture and economic activity.

The issue also has implications for migration.

If communities become increasingly difficult to inhabit, people may eventually be forced to move.

This could create additional pressures on neighbouring countries and international humanitarian systems.

The UN's decision to dedicate a high-level meeting to sea-level rise reflects the growing recognition that climate change is also a security and development issue.

GLOBAL ECONOMIC PRESSURES ARE ADDING TO THE CHALLENGE

The diplomatic agenda is unfolding alongside economic uncertainty.

Wars have disrupted energy markets and trade routes.

Shipping disruptions can increase transportation costs.

Higher energy prices can feed into food and manufacturing costs.

Countries that depend heavily on imported fuel or food can become particularly vulnerable to external shocks.

At the same time, many developing economies continue to face debt pressures and limited fiscal space.

These conditions complicate efforts to achieve the UN's development objectives.

Governments may support international development goals while simultaneously dealing with domestic economic pressures that restrict their ability to finance programmes.

TRADE ROUTES ARE PART OF THE SECURITY PICTURE

International shipping remains essential to the global economy.

Disruptions in strategically important waterways can affect the movement of oil, gas, food, manufactured products and raw materials.

The continuing security crisis around the Red Sea and Gulf region has therefore attracted international attention.

Changes in shipping routes can increase journey times and fuel consumption.

Those costs can eventually reach consumers.

A conflict thousands of kilometres away can therefore influence prices in countries that are not directly involved in the fighting.

This interconnectedness is one reason why international cooperation remains important.

THE WAR IN UKRAINE CONTINUES TO AFFECT EUROPE

Ukraine remains one of the most important security issues on the UN agenda.

The conflict has continued into its fifth year since Russia's full-scale invasion in 2022.

Recent developments have included large-scale drone attacks launched by both sides.

Russian drones struck Zaporizhzhia in southern Ukraine on Sunday, damaging apartment buildings, a university and a shopping mall and injuring several people, according to Ukrainian authorities.

The strikes followed a major Ukrainian drone offensive against Russia involving more than 1,000 drones, according to reports.

The latest attacks demonstrate that the war continues to involve long-range strikes far from the main battlefield.

The conflict has also affected countries beyond Russia and Ukraine.

European governments remain concerned about airspace violations, military escalation and the possibility that instability could spread beyond the immediate conflict zone.

THE MIDDLE EAST REMAINS A MAJOR DIPLOMATIC FLASHPOINT

The Middle East is expected to dominate discussions during the UN gathering.

The continuing conflict involving Iran, the United States, Israel and regional armed groups has created security concerns across the region.

Countries including Saudi Arabia, Qatar, Türkiye and other regional governments are closely involved in diplomatic efforts or security discussions.

Qatar has been involved in attempts to revive dialogue between Iran and the United States.

The conflict has also affected energy infrastructure and regional security.

Any prolonged disruption to major energy routes could have consequences for global markets.

That gives the diplomatic discussions an economic dimension as well as a security dimension.

GAZA REMAINS A MAJOR HUMANITARIAN ISSUE

The situation in Gaza will also feature prominently in discussions among world leaders.

The conflict has produced extensive destruction and severe humanitarian needs.

The future of humanitarian assistance, reconstruction and political arrangements will be among the difficult issues facing governments.

International disagreement over the conflict has also contributed to tensions within multilateral institutions.

Countries differ significantly in their assessment of the conflict, the responsibilities of the parties involved and the appropriate international response.

The General Assembly provides a forum for those disagreements to be expressed.

However, translating diplomatic statements into a sustainable political settlement remains considerably more difficult.

SUDAN'S WAR CONTINUES

Sudan remains another major humanitarian crisis.

The conflict between the Sudanese Armed Forces and the Rapid Support Forces has displaced millions of people and disrupted access to food, healthcare and other essential services.

International organisations have repeatedly warned about humanitarian needs.

The crisis also demonstrates the difficulty of resolving conflicts when external interests, internal political divisions and armed groups interact.

For the UN, the Sudanese conflict represents one of several crises competing for international attention and humanitarian resources.

MYANMAR AND THE DEMOCRATIC REPUBLIC OF CONGO

Myanmar and the Democratic Republic of Congo are also part of the broader global security picture.

Myanmar has experienced prolonged political and armed conflict since the military takeover in 2021.

The Democratic Republic of Congo continues to face instability and armed-group violence in parts of the country.

These crises receive less international attention than some major wars but continue to produce significant humanitarian consequences.

The presence of multiple simultaneous conflicts illustrates the scale of the challenge confronting the international community.

THE UN'S FINANCIAL CHALLENGE

The United Nations itself is dealing with financial pressure.

The organisation relies on contributions from member states to fund its operations.

Delays in payments and arrears can create difficulties for agencies and programmes.

The financial situation has therefore become part of the wider debate about the UN's effectiveness.

Governments want the organisation to respond to more crises, but its ability to do so depends partly on whether member states provide the necessary resources.

Financial stability is particularly important for humanitarian operations, peacekeeping missions and development programmes.

CALLS FOR REFORM ARE GROWING

The structure of the UN Security Council remains a major subject of international debate.

The Security Council has five permanent members with veto power: the United States, Russia, China, France and the United Kingdom.

Critics argue that the structure reflects the balance of power that existed when the organisation was created rather than the realities of the modern world.

Countries from Africa, Asia and Latin America have repeatedly called for greater representation.

The issue is especially important for Africa, which has 54 UN member states but no permanent seat on the Security Council.

Reform requires broad agreement, making it one of the most difficult institutional questions facing the organisation.

AFRICA'S ROLE AT THE UN

African countries will use the General Assembly to raise issues including development, debt, climate finance, peace and security and representation in global institutions.

Africa's large and growing population gives the continent significant importance in international discussions.

The continent is also directly affected by climate change, food insecurity, conflict and global economic conditions.

African governments have therefore pushed for greater influence over decisions affecting international finance, security and development.

The debate over Security Council reform remains central to that broader push.

THE GLOBAL SOUTH IS DEMANDING A GREATER VOICE

Developing countries have increasingly argued that global institutions need to reflect today's economic and demographic realities.

Many countries in Africa, Asia and Latin America have large populations and rapidly growing economies.

Yet decision-making power within several international institutions remains concentrated among a relatively small number of states.

The UN General Assembly gives every member state one vote, making it an important platform for countries seeking greater representation.

However, political influence depends not only on voting rights but also on economic strength, diplomatic relationships and the ability to build coalitions.

The high-level week provides an opportunity for developing countries to coordinate positions on issues such as climate finance, development funding and international economic reform.

THE UNITED STATES WILL BE UNDER INTERNATIONAL SCRUTINY

The United States remains one of the most influential countries in the UN system and will attract significant attention during the high-level week.

President Donald Trump is scheduled to participate in the General Assembly programme and hold bilateral meetings with other leaders.

US policy is central to several international crises, including the conflicts involving Iran and the wider Middle East.

Washington is also an important player in the Ukraine conflict and global economic policy.

The US relationship with international institutions is therefore likely to feature prominently in diplomatic discussions.

CHINA AND RUSSIA'S ABSENCE FROM SOME HIGH-LEVEL EVENTS

Not every major world leader is attending every part of the UN gathering.

The absence or lower-profile participation of leaders from some major powers can influence the atmosphere of the meetings.

China and Russia remain major permanent members of the Security Council and important players in international diplomacy.

Their positions on conflicts, sanctions, trade and technology are therefore closely watched.

Even when leaders are not physically present, their governments remain represented through diplomats and senior officials.

DIPLOMACY WILL TAKE PLACE OUTSIDE THE GENERAL ASSEMBLY HALL

The importance of UN week extends beyond speeches.

World leaders and foreign ministers use the gathering to hold bilateral and small-group meetings.

These private discussions can sometimes be more important than public speeches because they allow governments to explore possible compromises.

Meetings can cover security agreements, trade, humanitarian assistance, sanctions, migration and regional disputes.

The density of diplomatic activity makes New York a temporary centre of international negotiation.

The challenge is converting those meetings into concrete agreements.

GLOBAL HEALTH REMAINS ON THE AGENDA

Health will also feature during the high-level week.

The United Nations has scheduled a high-level meeting on pandemic prevention, preparedness and response for 25 September.

The meeting comes after the COVID-19 pandemic exposed weaknesses in global preparedness.

Countries continue to debate how future pandemics should be detected, reported and contained.

Questions about vaccine access, medical supply chains, international cooperation and health-system resilience remain relevant.

The goal is to ensure that future outbreaks do not produce the same level of disruption.

DEVELOPMENT GOALS FACE A DIFFICULT ENVIRONMENT

The UN's Sustainable Development Goals remain a central part of the organisation's agenda.

The goals cover poverty, health, education, gender equality, clean energy, decent work and other areas of development.

However, wars, economic shocks and climate disasters make progress more difficult.

Countries that experience conflict often have fewer resources available for education, healthcare and infrastructure.

Climate disasters can destroy development gains.

High debt costs can limit government spending.

The international community therefore faces the challenge of maintaining development commitments while responding to emergencies.

CAN COUNTRIES STILL FIND COMMON GROUND?

The central question of this year's General Assembly is not whether governments disagree.

They clearly do.

The more important question is whether they can identify areas where cooperation remains possible despite those disagreements.

Climate change is one area where countries have a shared interest in reducing risks.

Pandemic preparedness is another.

Cybersecurity and AI governance could also benefit from international communication.

Even rival countries have an interest in preventing certain forms of uncontrolled escalation.

The UN provides a place where those discussions can take place.

THE LIMITS OF INTERNATIONAL DIPLOMACY

Diplomacy cannot guarantee immediate solutions.

Governments have different national interests.

Some conflicts involve territorial disputes, historical grievances and competing security concerns.

Others involve internal political struggles that cannot easily be resolved by outside governments.

The UN can provide mediation, humanitarian assistance and diplomatic channels.

But ultimately, political agreements require the consent of the parties involved.

This is why the General Assembly's speeches and meetings must be understood as part of longer diplomatic processes rather than automatic solutions.

A CRITICAL WEEK FOR MULTILATERALISM

The gathering in New York represents a test for multilateralism — the principle that countries can address shared problems through international institutions and agreements.

The world currently faces problems that no country can completely solve alone.

Climate change crosses borders.

Viruses cross borders.

Cyberattacks cross borders.

Financial crises spread through international markets.

Wars disrupt food and energy supplies far beyond the battlefield.

AI systems operate across jurisdictions.

These realities create a continuing need for international cooperation even when political relations are strained.

WHAT HAPPENS THIS WEEK

The General Assembly high-level programme will continue through 28 September.

Among the scheduled events are:

• 22–28 September: General Debate

• 23 September: High-level meeting on the right to development and climate action

• 24 September: High-level meeting on sea-level rise

• 25 September: High-level meeting on pandemic prevention and preparedness

• 28 September: Meeting marking the 25th anniversary of the Durban Declaration and Programme of Action.

The programme provides a broad platform for governments to address both immediate crises and long-term international challenges.

THE WORLD WILL BE WATCHING THE DIPLOMATIC OUTCOMES

The significance of the gathering will ultimately be measured by what happens after the speeches.

If governments can establish new diplomatic channels, strengthen humanitarian cooperation or make progress on international agreements, the gathering could produce tangible results.

If major disputes continue to dominate without meaningful progress, the meeting may instead highlight the limitations of current international institutions.

Either way, the discussions will provide a snapshot of the current state of global diplomacy.

FINAL OUTLOOK

World leaders are gathering in New York for the United Nations General Assembly's high-level week at a moment when international cooperation is being tested by multiple wars, economic pressures, climate change and rapid technological change.

Nearly 130 heads of state and government are expected to attend the high-level week, while the General Debate will take place from 22 to 26 September and again on 28 September.

The UN's 81st session is operating under the theme “Restoring trust, managing transformation: a United Nations that delivers for all.”

The theme reflects the central challenge facing the organisation.

The international community is confronting more than one crisis at a time.

Wars in the Middle East, Ukraine, Sudan, the Democratic Republic of Congo and Myanmar continue to generate security and humanitarian concerns.

At the same time, climate change is producing increasingly serious risks, while global trade and energy systems remain vulnerable to geopolitical disruption.

Artificial intelligence introduces another rapidly developing challenge.

Countries are being forced to consider how advanced AI should be governed, how its risks should be controlled and how it should be used responsibly in civilian and security environments.

The UN is also confronting questions about its own effectiveness, financial stability and institutional structure.

Calls for Security Council reform continue, particularly from countries that argue that the current structure does not adequately represent today's global population and economic realities.

For African countries, questions about representation, development financing, climate change and international security remain particularly important.

The coming days will provide an opportunity for African governments and other developing nations to present their priorities before a global audience.

The high-level meetings on climate, sea-level rise and pandemic preparedness will also address problems that cannot be contained within national borders.

Yet the most important issue may be whether countries can cooperate despite their disagreements.

The United Nations was created to provide a place where states could communicate when international tensions were high.

More than 80 years later, that function remains relevant.

The organisation cannot independently end wars or force governments to abandon their national interests.

But it can provide a diplomatic platform, coordinate humanitarian action, establish international norms and create opportunities for governments to negotiate.

The 2026 General Assembly therefore arrives at a moment when the need for international cooperation remains high while political divisions are also deep.

The speeches in New York will attract global attention, but the more important developments may occur in bilateral meetings, negotiations and technical discussions taking place away from the main chamber.

As leaders debate wars, climate change, AI, health, development and international reform, the outcome of the week will help show whether governments can still find practical areas of cooperation in an increasingly divided world.

For millions of people affected by conflict, displacement, economic hardship and climate disasters, the significance of the gathering will ultimately depend not on the words delivered from the UN podium, but on whether those words are followed by concrete action.