Consequences of State Responsibility in International Law

Meaning of State Responsibility

When a State commits an internationally wrongful act, international law attaches legal consequences to that conduct.

The consequences of State responsibility are primarily addressed in Part Two of the International Law Commission’s Articles on Responsibility of States for Internationally Wrongful Acts (ARSIWA).

The basic principle is:

Internationally wrongful act

↓

State responsibility

↓

Legal consequences

↓

Cessation + Non-repetition + Full reparation

The central provision is Article 28 ARSIWA, which provides that the legal consequences of an internationally wrongful act set out in Part Two are without prejudice to the continuation of the obligation breached.

When Do the Consequences Arise?

Under Article 1 ARSIWA, every internationally wrongful act of a State entails the international responsibility of that State.

Under Article 2, an internationally wrongful act exists where:

• conduct is attributable to the State under international law; and
• the conduct constitutes a breach of an international obligation.

Once these requirements are established, the consequences of responsibility arise.

Nature of the Consequences

The consequences of State responsibility are primarily restorative and remedial, rather than punitive.

The principal objectives are to:

• stop continuing wrongful conduct;
• restore compliance with international law;
• repair the injury caused;
• provide appropriate assurances against repetition where necessary.

The law does not generally treat State responsibility as a system of criminal punishment.

Article 28 – Legal Consequences

Article 28 ARSIWA provides that the international responsibility of a State under Part One entails the legal consequences set out in Part Two.

These consequences operate without prejudice to the continuation of the obligation breached.

This is important because responsibility does not normally extinguish the underlying obligation.

Example

If State A breaches a treaty obligation requiring it to protect certain property, the fact that State A has incurred responsibility does not mean that the treaty obligation disappears.

The obligation continues, and additional obligations concerning cessation and reparation may arise.

Article 29 – Continued Duty of Performance

Article 29 ARSIWA makes clear that the legal consequences of an internationally wrongful act do not affect the continued duty of the responsible State to perform the obligation breached.

Therefore:

Breach does not cancel the original obligation.

The State remains bound by the primary obligation unless international law provides otherwise.

Article 30 – Cessation and Non-Repetition

Article 30 establishes two important consequences.

Cessation

If the wrongful act is continuing, the responsible State has an obligation to cease the conduct.

The State must stop the continuing violation and return to compliance with international law.

Assurances and Guarantees of Non-Repetition

Where circumstances require, the responsible State must provide appropriate assurances and guarantees of non-repetition.

These are particularly relevant where there is a justified concern that the wrongful conduct may occur again.

Example

If a State is continuously violating another State’s territorial rights, responsibility may require the State to:

stop the violation

and, where appropriate,

provide assurances that the conduct will not be repeated.

Article 31 – Reparation for Injury

Article 31 ARSIWA establishes the fundamental obligation of full reparation.

The responsible State must make full reparation for the injury caused by the internationally wrongful act.

The injury may include:

• material injury;
• moral injury.

The central principle is that the consequences of the wrongful act should, as far as legally and practically possible, be remedied.

Factory at Chorzów

The classic authority on reparation is the Factory at Chorzów (Germany v Poland) case before the Permanent Court of International Justice.

The Court established the fundamental principle that reparation should, as far as possible, wipe out the consequences of the illegal act and restore the situation that would probably have existed had the wrongful act not occurred.

This principle forms an important foundation for the modern law of reparation.

Forms of Reparation

ARSIWA recognises three principal forms of reparation:

Restitution — Article 35

Compensation — Article 36

Satisfaction — Article 37

These forms are not necessarily mutually exclusive.

Depending upon the circumstances, more than one form may be required to provide full reparation.

Article 35 – Restitution

Restitution means restoring the situation that existed before the wrongful act was committed.

It is generally the preferred form of reparation where restoration is:

• not materially impossible; and
• not excessively burdensome in the circumstances recognised by Article 35.

Example

Suppose State A unlawfully occupies and takes control of property belonging to State B.

If restoration is legally and practically possible, State A may be required to return the property.

Limitations

Article 35 does not require restitution where:

• it is materially impossible; or
• restitution would involve a burden wholly disproportionate to the benefit derived from restitution instead of compensation.

Article 36 – Compensation

Where restitution does not fully repair the injury, compensation may be required.

Under Article 36 ARSIWA, the responsible State is under an obligation to compensate for damage caused by the internationally wrongful act insofar as such damage is not made good by restitution.

Compensation may cover financially assessable damage.

Depending on the circumstances, this may include:

• direct financial loss;
• property damage;
• consequential economic loss where legally established;
• other financially assessable injury.

Article 37 – Satisfaction

Satisfaction is an appropriate form of reparation particularly for moral or non-material injury where restitution or compensation cannot adequately repair the injury.

Satisfaction may take forms such as:

• acknowledgement of the breach;
• expression of regret;
• formal apology;
• another appropriate modality.

Limitation

Satisfaction must not be out of proportion to the injury and must not take a form that is humiliating to the responsible State.

Restitution, Compensation and Satisfaction

Form	Article	Main purpose
Restitution	Article 35	Restore the pre-breach situation
Compensation	Article 36	Repair financially assessable damage
Satisfaction	Article 37	Repair moral/non-material injury

Easy Memory

Restitution → Restore

Compensation → Pay

Satisfaction → Acknowledge/Remedy moral injury

Article 32 – Internal Law Cannot Excuse Non-Compliance

Article 32 ARSIWA provides that the responsible State cannot rely upon the provisions of its internal law as justification for failing to comply with its international responsibility.

This reflects the principle that international responsibility is determined under international law, not according to a State’s domestic legal excuses.

Example

If a State’s constitution or domestic legislation prevents it from paying compensation required under international law, the State cannot simply invoke that domestic law to avoid its international responsibility.

Article 33 – Scope of the Obligations

Article 33 addresses the scope of the international obligations set out in Part Two.

The obligations of cessation, reparation and related consequences may be owed:

• to an injured State, in the circumstances provided by the Articles; or
• in certain circumstances, to other States or entities where international law recognises a corresponding legal interest.

This is especially important in relation to obligations owed to the international community as a whole.

Serious Breaches of Obligations under Peremptory Norms

A particularly important category of consequences arises where there is a serious breach of an obligation arising under a peremptory norm of general international law (jus cogens).

This is dealt with in Articles 40 and 41 ARSIWA.

Article 40 – Serious Breach

Article 40 applies to breaches of obligations arising under peremptory norms of general international law.

A breach is considered serious when it involves a gross or systematic failure by the responsible State to fulfil the obligation.

Thus, two ideas are central:

Jus cogens obligation

Gross or systematic breach

=

Serious breach

Article 41 – Consequences of Serious Breaches

Article 41 establishes special consequences for serious breaches of obligations arising under jus cogens.

Duty to Cooperate

States must cooperate to bring the serious breach to an end through lawful means.

No Recognition

States must not recognise as lawful a situation created by such a serious breach.

No Assistance

States must not render aid or assistance in maintaining that situation.

These obligations apply beyond the directly injured State and reflect the collective interest of the international community.

Example of the Article 40–41 Framework

Suppose a State commits a gross and systematic violation of a fundamental jus cogens prohibition.

The consequences may go beyond ordinary bilateral responsibility.

Other States may have obligations to:

• cooperate to end the unlawful situation;
• avoid recognising the unlawful situation as lawful;
• avoid assisting in maintaining it.

This illustrates the special character of erga omnes and jus cogens-related obligations.

Injured State

Article 42 ARSIWA identifies when a State is entitled to invoke the responsibility of another State as an injured State.

Broadly, this includes situations where:

• the obligation was owed to that State individually; or
• the State is specially affected by the breach in circumstances specified by the Article.

An injured State may invoke consequences such as:

• cessation;
• non-repetition;
• reparation;
• other consequences permitted under international law.

Invocation by States Other Than an Injured State

Article 48 ARSIWA recognises circumstances in which a State other than an injured State may invoke the responsibility of another State.

This is particularly important where the obligation breached is owed to:

• a group of States including that State, and is established for a collective interest; or
• the international community as a whole.

Such a State may claim:

• cessation of the breach;
• performance of the obligation of reparation in the interest of the injured State or beneficiaries; and
• other remedies recognised under Article 48.

Countermeasures as a Consequence

Where the legal requirements are satisfied, an injured State may take countermeasures against the responsible State.

The relevant provisions are Articles 49–54 ARSIWA.

Countermeasures are not themselves ordinary consequences automatically triggered by every breach.

They are subject to strict conditions, including:

• prior internationally wrongful conduct;
• a proper purpose of inducing compliance;
• proportionality;
• procedural requirements;
• respect for protected obligations.

Thus:

State responsibility → may give rise to countermeasures

but

State responsibility ≠ automatic right to retaliate

Cessation vs Reparation

These concepts are distinct.

Cessation

The responsible State stops the ongoing wrongful conduct.

Reparation

The responsible State repairs the injury already caused.

Example

If State A continues to occupy State B’s territory unlawfully:

Cessation → withdraw from the territory

Restitution → restore the lawful situation

Compensation → pay for legally established financial loss

Satisfaction → address appropriate non-material injury

A single case may involve several forms of consequence.

Reparation Is Based on Full Reparation

The objective is not simply to impose a monetary penalty.

The objective is to repair the injury caused by the wrongful act.

This is why the appropriate form of reparation depends upon:

• the nature of the injury;
• whether restitution is possible;
• the existence of financially assessable damage;
• the existence of moral injury;
• the circumstances of the particular case.

Material and Moral Injury

Material Injury

Material injury involves measurable physical or economic harm.

Examples include:

• destruction of property;
• financial loss;
• damage to infrastructure.

Compensation may be appropriate.

Moral Injury

Moral injury concerns non-material harm, including injury to:

• dignity;
• reputation;
• sovereignty;
• legal interests.

Satisfaction may be appropriate where compensation or restitution does not adequately repair the injury.

Important Cases

Factory at Chorzów

Key principle: Full reparation.

The case established the foundational principle that reparation should, as far as possible, eliminate the consequences of the wrongful act.

Exam relevance: Articles 31, 35, 36 and 37.

United States Diplomatic and Consular Staff in Tehran

The ICJ found Iran internationally responsible for violations concerning the United States diplomatic and consular personnel and premises.

The case illustrates the consequences of an internationally wrongful act, including the obligation to remedy the consequences of the violations.

Gabčíkovo-Nagymaros Project

The ICJ considered the consequences of State responsibility in the context of treaty performance and wrongful conduct.

The judgment is useful for understanding:

• cessation;
• continuing obligations;
• restoration of compliance;
• consequences of wrongful conduct.

Armed Activities on the Territory of the Congo

The ICJ considered questions of State responsibility and reparation arising from internationally wrongful conduct.

It is useful for understanding the relationship between:

wrongful act → responsibility → reparation

Complete Framework

The consequences of State responsibility can be understood through this structure:

Internationally wrongful act

↓

Responsibility of the State

↓

Article 29 — Continued duty to perform the original obligation

↓

Article 30 — Cessation + Non-repetition

↓

Article 31 — Full reparation

↓

Article 35 — Restitution

Article 36 — Compensation

Article 37 — Satisfaction

↓

Articles 40–41 — Special consequences for serious jus cogens breaches

↓

Articles 42/48 — Who may invoke responsibility

↓

Articles 49–54 — Countermeasures

Quick Revision

Provision	Consequence / Principle
Article 28	Legal consequences of State responsibility
Article 29	Continued duty to perform the obligation breached
Article 30	Cessation and non-repetition
Article 31	Full reparation
Article 32	Internal law cannot justify non-compliance
Article 33	Scope of obligations
Article 35	Restitution
Article 36	Compensation
Article 37	Satisfaction
Article 40	Serious breaches of jus cogens obligations
Article 41	Consequences of serious breaches
Article 42	Injured State
Article 48	Invocation by other States
Articles 49–54	Countermeasures

Key Exam Points

• An internationally wrongful act entails international responsibility.
• The principal consequences are found in Part Two of ARSIWA.
• Article 29 preserves the State’s duty to perform the original obligation.
• Article 30 requires cessation of continuing wrongful conduct and, where appropriate, assurances and guarantees of non-repetition.
• Article 31 establishes the principle of full reparation.
• The three principal forms of reparation are:
  • Restitution — Article 35
  • Compensation — Article 36
  • Satisfaction — Article 37
• Internal law cannot be used to escape international responsibility under Article 32.
• Articles 40–41 establish special consequences for serious breaches of jus cogens obligations.
• Article 42 concerns the injured State.
• Article 48 permits certain other States to invoke responsibility.
• Articles 49–54 regulate countermeasures.
• Factory at Chorzów is the classic authority on full reparation.

Conclusion

The consequences of State responsibility are designed primarily to restore legality and repair injury, rather than to punish the responsible State. Once an internationally wrongful act is established, the responsible State remains bound by the original obligation and may also be required to cease the wrongful conduct, provide assurances of non-repetition and make full reparation.

Reparation may take the form of restitution, compensation or satisfaction, depending upon the nature of the injury. Serious breaches of jus cogens obligations attract additional consequences, including duties on other States concerning cooperation, recognition and assistance.

The easiest framework to remember is:

Article 29 → Perform the original obligation

Article 30 → Cease + Non-repetition

Article 31 → Full reparation

Article 35 → Restitution

Article 36 → Compensation

Article 37 → Satisfaction

Articles 40–41 → Serious jus cogens breaches

Articles 49–54 → Countermeasures