António Guterres was addressing a high-level open debate of the UN Security Council convened by Somalia, which holds the Council presidency for January.

The discussion comes as conflicts multiply, global tensions rise, and confidence in international institutions and rules is fading – even as the UN marks 80 years since the adoption of its founding Charter, which set out principles meant to prevent wars and reduce suffering.

“The rule of law is a cornerstone of global peace and security,” Mr. Guterres said, calling it “the beating heart” of the UN Charter.

For eight decades, he said, the Charter, alongside the Universal Declaration of Human Rights, the Geneva Conventions and other core legal instruments, has helped humanity avoid another world war and limit the toll of countless conflicts.

Flagrant violations

But the Secretary-General warned that commitments to international law are increasingly being ignored.

“Around the world, the rule of law is being replaced by the law of the jungle,” he said, pointing to what he described as flagrant violations of the UN Charter and international law, including the illegal use of force, attacks on civilian infrastructure, human rights abuses and the denial of life-saving humanitarian aid.

From Gaza to Ukraine and beyond, he said, the rule of law is being treated as “an à la carte menu,” with States choosing which rules to follow. Such violations, he warned, set dangerous precedents, encourage impunity and erode trust among nations.

A lifeline and a guardrail

For smaller and less-powerful countries, particularly those affected by historical inequities and the legacies of colonialism, international law is “a lifeline promising equal treatment, sovereignty, dignity and justice,” Mr. Guterres said.

“For powerful countries, it is a guardrail defining what is acceptable – and what is not, in times of disagreement, division and outright conflict,” he added.

He underscored the unique responsibility of the Security Council, the only body with Charter-mandated authority to adopt decisions binding on all Member States and to authorize the use of force under international law.

“Its responsibility is singular. Its obligation is universal,” he said.

Priorities for action

Looking ahead, the UN chief outlined three priority areas for action.

First, he urged countries to honour the commitments they made under the Charter, including settling disputes peacefully, safeguarding human rights and respecting the sovereign equality of States.

Second, he called for the use of peaceful tools to settle disputes – negotiation, mediation and judicial settlement, alongside stronger partnerships with regional organizations – and more investment in development to address the root causes of inequality and exclusion.

Third, he stressed the need for fair, independent judicial proceedings. He encouraged greater reliance on independent courts and tribunals, including the International Court of Justice (ICJ) and stronger support for international criminal justice.

“There can be no sustainable or just peace without accountability,” Mr. Guterres said. “The rule of law must prevail.”

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