THE LEGALITY OF U.S.-ISRAEL STRIKES ON IRAN

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Picture Courtesy:  THEHINDU

Context

The U.S.-Israel strikes on Iran, dubbed Operation Epic Fury and Operation Roaring Lion, face scrutiny for potentially violating international law, specifically the UN Charter and International Humanitarian Law.

Read all about: Israel-Iran Strike Regional Tension l Operation 'Lion's Roar' To 'Epic Fury'

What is the UN Charter's Stance on the Use of Force?

The UN Charter prohibits the use of force in international relations to maintain global peace, establishing this as a fundamental, non-derogable principle of international law.

General Prohibition (Article 2(4))

Article 2(4) states that all UN members must refrain from the: 

• Threat of force: Merely threatening to use military action is prohibited.
• Use of force: Any physical act of aggression or armed intervention is forbidden.
• Targets: This applies specifically to actions against the "territorial integrity or political independence" of any state. 

Exceptions to the Prohibition

The Charter provides only two explicit legal exceptions where the use of force is permitted: 

1. Individual or Collective Self-Defence (Article 51):
• States have an "inherent right" to defend themselves if an armed attack occurs.
• This right exists until the Security Council takes necessary measures to restore peace.
• Measures taken must be immediately reported to the Security Council.
2. Security Council Authorization (Chapter VII):
• Under Article 42, the UN Security Council may authorize collective military action if non-military measures (like economic sanctions) are deemed inadequate to restore international peace and security.
• Such actions must be approved by the Security Council to be legal under the Charter. 

Case Study: 2003 Invasion of Iraq Justification Used: The U.S. and its allies cited pre-emptive self-defence, claiming a threat from Iraq's alleged Weapons of Mass Destruction (WMD). Legal Standing: The invasion lacked explicit UNSC authorisation and was widely contested globally. International Verdict: Then-UN Secretary-General Kofi Annan later declared the invasion "illegal" from a UN Charter perspective. The UK's Chilcot Report concluded that the legal basis for the war was "far from satisfactory".

Emerging and Controversial Interpretations

Cyber Warfare: Many states and legal experts now argue that a cyber operation can constitute a "use of force" if its scale and effects are comparable to a physical kinetic attack (e.g., permanently disabling a power grid).

Anticipatory Self-Defence: Some interpret Article 51 to allow force in the face of an "imminent and inevitable" attack, though "preventative" strikes against potential future threats remain widely rejected as illegal.

Non-State Actors: There is ongoing debate over whether Article 51 allows self-defence against non-state groups (like terrorist organizations) when the host state is "unwilling or unable" to stop them. 

Can a 'Pre-emptive' Strike be Justified as Self-Defence?

Legality of a pre-emptive strike depends on interpreting the UN Charter (response-only) against customary international law (permitting force for "imminent" threats).

Legal Framework: Charter vs Custom

UN Charter (Article 51): Strictly requires that an "armed attack occurs" before the right to self-defence is triggered. Some "strict constructionists" argue this means pre-emptive strikes are always illegal.

Customary International Law (The Caroline Test): Most states and scholars recognize a broader "inherent right" based on the 1837 Caroline case; allows for anticipatory self-defence if the necessity is "instant, overwhelming, and leaving no choice of means, and no moment for deliberation". 

Distinctions in "Anticipatory" Force

The legality of striking first depends on the distinction between pre-emptive and preventive actions: 

• Pre-emptive (Anticipatory) Strike: Targeted at an imminent and specific threat (e.g., missiles about to be launched), this is widely seen as a legitimate extension of self-defence.
• Preventive Strike: Targeted at a potential or developing threat that is not yet imminent (e.g., stopping a nation from developing nuclear capabilities). Almost universally considered illegal under international law.

Modern Challenges and State Practice

The definition of "imminence" is shifting due to modern threats like terrorism and cyber warfare: 

• "Contextual Imminence": Powerful states (US, UK, Australia) have adopted a flexible definition that allows action when there's a "last window of opportunity," even if an attack isn't "immediate."
• State Practice: Countries like Israel (1967 Six-Day War), the US (2001 Afghanistan), and India (2016 surgical strikes) have used pre-emptive justifications. 
• Debated in the UN Security Council, these acts sometimes receive "tacit support" (no condemnation) if a grave threat is proven.

Necessary Conditions for Justification

To be legally defensible, a pre-emptive strike must meet three criteria: 

1. Necessity: Force must be the last resort; all peaceful or diplomatic alternatives must be exhausted.
2. Proportionality: The force used must be limited to what is strictly required to repel the specific threat.
3. Reporting: States must immediately report their actions to the UN Security Council under Article 51. 

How Does International Law Protect Civilians in War?

International Humanitarian Law (IHL), primarily through the Geneva Conventions and their Additional Protocols, is the framework of international law that protects civilians during war by balancing military necessity with the principle of humanity to limit suffering.

Fundamental Principles of Protection

Modern IHL is built on three core principles that dictate how military operations must be conducted: 

• Distinction: Combatants must always distinguish between the civilian population and military targets. It is strictly prohibited to target civilians or civilian objects (homes, schools, places of worship).
• Proportionality: Attacks on military objectives are forbidden if the "incidental" harm to civilians would be excessive in relation to the direct military advantage expected.
• Precautions: Military commanders must take all feasible steps to minimize civilian harm, such as verifying targets and giving effective advance warnings when possible. 

Protections for All Civilians

Under the Fourth Geneva Convention (1949) and Additional Protocol I (1977), civilians are entitled to certain basic rights regardless of the conflict's nature: 

• Humane Treatment: Civilians must be treated humanely at all times. Acts like murder, torture, corporal punishment, and mutilation are strictly forbidden.
• Prohibition of Terror: Attacks or threats intended primarily to spread terror among the civilian population are illegal.
• Safety Zones: Parties may establish "hospital and safety zones" to protect vulnerable groups like the wounded, children, and expectant mothers.
• Humanitarian Aid: States must allow for the rapid and unimpeded passage of essential relief, such as food and medicine, for civilians in need. 

Special Protections for Vulnerable Groups

Certain groups receive "reinforced" protection due to their specific vulnerabilities: 

• Women and Children: IHL protects women from rape, forced prostitution, and assault. Children under 18 must not participate in hostilities and are entitled to special care.
• Medical Personnel and Facilities: Hospitals, ambulances, and medical staff (identified by symbols like the Red Cross or Red Crescent) must never be attacked.
• Objects Indispensable to Survival: It is prohibited to attack or destroy resources essential for civilian survival, such as drinking water installations, crops, and livestock. 

Civilians in Occupied Territories

When a state occupies another's territory, it assumes specific responsibilities as an "Occupying Power": 

• Maintenance of Civil Life: The occupier must ensure public order and provide for the population's basic needs, including food and medical supplies.
• No Forced Deportation: Individual or mass forcible transfers of civilians out of occupied territory are prohibited.
• Individual Responsibility: Collective punishment—punishing a whole community for the acts of individuals—is a war crime. 

Enforcement and Accountability

Serious violations of these rules are classified as war crimes. Accountability is pursued through: 

• International Courts: The International Criminal Court (ICC) can prosecute individuals for the most serious crimes when national courts are unable or unwilling to do so.
• The ICRC: The International Committee of the Red Cross acts as a neutral guardian of IHL, monitoring compliance and providing assistance to victims. 

Is International Law Enforceable?

International law is enforceable through a decentralized "architecture of accountability" involving diplomatic pressure, economic sanctions, and international courts, rather than a centralized "global police force.

The Role of the UN Security Council

The United Nations Security Council (UNSC) is the primary body for enforcing international peace and security under Chapter VII of the UN Charter. 

Mandatory Sanctions: The Council can impose diplomatic or economic sanctions, such as trade embargoes and asset freezes.

Military Action: As a last resort, it can authorize the use of force to restore order.

The Veto Barrier: Enforcement is often hindered by the "veto power" of the five permanent members (P5), which can lead to paralysis in high-stakes conflicts like those in Ukraine or Gaza. 

International Courts and Tribunals

International Court of Justice (ICJ): Settles legal disputes between states (e.g., maritime borders or treaty violations). While its rulings are binding, it relies on the Security Council for enforcement if a state refuses to comply.

International Criminal Court (ICC): Prosecutes individuals for the most serious crimes—genocide, war crimes, and crimes against humanity. Because it has no police, it relies on member states to execute arrest warrants. 

Decentralized and "Quiet" Enforcement

Reciprocity: States follow rules (like civil aviation or trade laws) because they want other states to do the same.

Reputational Costs: Governments often frame their actions in legal terms to maintain international legitimacy. Violating clear norms can lead to political isolation or loss of foreign investment.

Domestic Courts: Many international treaties are incorporated into national laws, allowing local courts to enforce them directly against individuals or corporations. 

Way Forward

The "way forward" for international law is currently defined by a shift from a centralized, Western-led model toward a more multipolar and adaptive framework. 

Reforming Institutions

The most urgent priority is modernizing the United Nations Security Council (UNSC) to reflect 21st-century realities. 

Expansion of Membership: Nations like India, Brazil, and African states are intensifying demands for permanent seats to correct existing geopolitical imbalances.

Veto Reform: There is a growing push to limit the use of the veto in cases of mass atrocities to prevent the "institutional inertia" seen in recent conflicts. 

New Legal Frontiers (Digital and Environmental)

UN Convention against Cybercrime: Adopted in late 2024, this treaty represents a major step in coordinating international responses to transnational digital threats.

Climate and "Just Transition": International law is evolving to include mandatory human rights due diligence in supply chains and the development of social/ecological standards for global trade. 

Strengthening Regional and Hybrid Accountability 

Regional Adjudication: Strengthening regional courts (like the European or African Courts of Human Rights) to handle disputes closer to the source.

Universal Jurisdiction: An increasing number of national courts are prosecuting individuals for international crimes committed abroad, ensuring that "safe havens" for war criminals are shrinking.

Multilateralism "Upgrades"

The Pact for the Future (adopted September 2024) serves as a roadmap for a more inclusive system. This includes the Global Digital Compact and a "recommitment" to cooperation that prioritizes the Global South and human-centric governance over traditional power politics. 

Conclusion

The UN Charter prohibits the threat or use of force against any state, allowing exceptions only for individual or collective self-defence or when authorized by the Security Council.

Source: THEHINDU

PRACTICE QUESTION Q. The escalating US-Iran conflict in 2026 poses a severe challenge to India’s policy of 'Strategic Autonomy. Discuss. 150 words