International Court of Justice
Allegations of Genocide under the Convention on the
Prevention and Punishment of the Crime of Genocide
(Ukraine v. Russian Federation: 32 States Intervening)
Written Observations of the Portuguese Republic
on the Construction of Article IX of the Genocide Convention and of Other Provisions
Relevant the Determination of the Jurisdiction of the Court
5July2023
I . Introduction
1. On 26 February 2022, Ukraine instituted proceedings at the International Court of
Justice against the Russian Federation in a dispute concerning the interpretation,
application or fulfilment of the Convention on the Prevention and Punishment of
Genocide (the "Convention").1
2. Ukraine contends that there is a dispute between Ukraine and the Russian Federation
within the meaning of Article IX relating to the interpretation, application, or
fulfilment of the Convention.2 On substance, Ukraine claims that the use of force by
the Russian Federation in or against Ukraine since 24 February 2022 based on an
alleged genocide, as well as the recognition that preceded the military operation, are
incompatible with the Convention, quoting Articles 1-111 thereof.3
3. On 7 October 2022, the Portuguese Republic submitted to the Court a Declaration of
Intervention pursuant to Article 63, paragraph 2.
4. On 5 June 2023, the International Court of Justice decided that the declarations of
intervention under Article 63 ofthe Statute ofthe Court submitted by, among others,
the Portuguese Republic, were admissible.4 The Court fixed 5 July 2023 as the time
limit for the filing of the written observations referred to in Article 86, paragraph 1,
of the Rules of the Court.5
1 Application instituting proceedings, filed in the Registry of the Court on 27 February 2022.
2 Ibid, paras. 4-12.
3 Ibid, paras. 26-29.
4 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide (Ukraine v. Russian Federation), Order of 5 June 2023, https://www.icjcij.
org/sites/default/files/case-related/182/182-20230605-0RD-Ol-OO-EN.pdf, paras. 99 and 102(1).
5 Ibid, para. 102(3).
5. Upon the Court's invitation to coordinate with other intervening States, the
Portuguese Republic has reached a large substantive convergence with the position
of other interveners. However, in order to be able to meet the strict deadline set by
the Court and for logistical reasons, the Portuguese Republic files its own Written
Observations.
6. As determined by the Court, the construction of Article IX and of other provisions of
the Convention concerning the Court's jurisdiction ratione materiae is in question at
the present stage of the Proceedings6.
7. It is the view of the Portuguese Republic that the Court has jurisdiction under Article
IX of the Convention over the claim submitted by Ukraine, since the claim refers to a
dispute between Ukraine and the Russian Federation relating to substantive matters
dealt with by the Convention.
8. The elements that, in the opinion of the Portuguese Republic, establish the Court's
jurisdiction in the present case are addressed in sequence below.
II. Construction of Article IX of the Genocide Convention and of Other Provisions
Relevant the Determination of the Jurisdiction of the Court
9. Article IX of the Convention reads as follows:
Disputes between the Contracting Parties relating to the interpretation, application or fu lfilment of
the present Convention, including those relating to the responsibility of a State for genocide or for
any of the other acts enumerated in Article 111, shall be submitted to the International Court of Justice
at the request of any of the parties to the dispute.
6 Order on Admissibility of the Declarations of Intervention (n 1), p. 26.
10. It is worth starting by noting that, in its order of 16 March 2022 indicating
provisional measures, the Court affirmed its jurisdiction prima facie on the basis of
Article IX of the Genocide Convention.7 Although not being a definitive stance on
whether it has jurisdiction to rule on the merits of the case, the case law of the
International Court of Justice shows that it is nevertheless a strong indication that
the jurisdiction requirements for the Court to entertain the claim are met.
11. In fact, in other cases in the past involving questions related to genocide between
contracting parties to the Genocide Convention, where a similar finding occurred
regarding the establishment of prima facie jurisdiction at the provisional measures
stage on the existence of a dispute between the Parties relating to the
interpretation, application or fulfillment of the Genocide Convention on the basis
of Article IX of the Convention (Bosnia Herzegovina v. Serbia and Montenegro and
The Gambia v. Myanmar),8 in the judgment on Preliminary Objections the Court has
always confirmed its decision on prima facie jurisdiction.9
12. At the present stage of the proceedings, and taking into consideration the specific
claim before the Court, the Portuguese Republic wishes to submit four observations
on the construction of the Genocide Convention concerning the Court's jurisdiction,
as follows:
A) The claim concerns an existing dispute;
B) The dispute relates to the interpretation, application, or fulfilment of the
Convention;
C) The dispute relates to substantive obligations under the Convention;
D) The claim was duly submitted by one of the Parties to the dispute.
7 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide (Ukraine v. Russian Federation), Order of 16 March 2022, paras. 28-49.
8 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia and
Herzegovina v. Serbia and Montenegro), Order of 8 April 1993; Application of the Convention on the
Prevention and Punishment of the Crime of Genocide (The Gambia v. Myanmar), Order of 23 January
2022.
9 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia and
Herzegovina v. Serbia and Montenegro), Judgment of 11 July 1996; Application of the Convention on the
Prevention and Punishment of the Crime of Genocide (The Gambia v. Myanmar), Judgment of 22 July
2022.
A. The Claim concerns an Existing Dispute
13. First, the Portuguese Republic observes that the claim submitted by Ukraine
concerns an existing dispute.
14. The notion of 'dispute' is already well-established in the case law of the Court, which
considers the meaning given to the word 'dispute' as "a disagreement on a point of
law or fact, a conflict of legal views or of interests" between parties.10 In order for a
dispute to exist, "[i]t must be shown that the claim of one party is positively opposed
by the other".11 The two sides must "hold clearly opposite views concerning the
question of the performance or nonperformance of certain international
obligations".12 Moreover, "in case the respondent has failed to reply to the
applicant's claims, it may be inferred from this silence, in certain circumstances, that
it rejects those claims and that, therefore, a dispute exists".13
15. In that respect, the communication by the Russian Federation to the Court on 7
March 2022 seems to construe the notion of a dispute too narrowly by insisting that
Article IX cannot be used to establish jurisdiction of the Court for disputes relating
to the use of force or issues of self-defense under general international law.14
10 Mavrommatis Palestine Concessions, Judgment No. 2, 1924, P.C.1.J., Series A, No. 2, p. 11.
11 South West Africa (Ethiopia v. South Africa; Liberia v. South Africa), Preliminary Objections, Judgment
of 21 December 1962, I.C.J. Reports 1962, p. 319, at p. 328.
12 Application of the International Convention on the Elimination of Alf Forms of Racial Discrimination
(Qatar v. United Arab Emirates), Provisional Measures, Order of 23 July 2018, I.C.J. Reports 2018, p. 406,
at p. 414, para. 18; ICJ, Alleged Violations of Sovereign Rights and Maritime Spaces in the Caribbean Sea
(Nicaragua v. Colombia), Preliminary Objections, Judgment, I.C.J. Reports 2016, p. 3, at p. 26, para. 50,
citing Interpretation of Peace Treaties with Bulgaria, Hungary and Romania, First Phase, Advisory Opinion,
I.C.J. Reports 1950, p. 74.
13 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (The Gambia
v. Myanmar), Judgment of 22 July 2022, p. 27, para. 71.
14 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide (Ukraine v. Russian Federation), Document of the Russian Federation of 7 March 2022, paras. 8-
15.
16. However, it follows from established case law of the Court that certain facts or
omissions may give rise to a dispute that fall within the scope of more than one
treaty.15 Hence, a parallel dispute arising out of the same facts does not create an
obstacle to the jurisdiction of the Court under Article IX of the Convention, provided
that its other conditions are fulfilled.
17. Moreover, in its Order of 16 March 2022, the Court determined that
[t]he statements made by the State organs and senior officials of the Parties indicate a divergence of
views as to whether certain acts allegedly committed by Ukraine in the Luhansk and Donetsk regions
amount to genocide in violation of its obligations under the Genocide Convention, as well as whether
the use of force by the Russian Federation for the stated purpose of preventing and punishing alleged
genocide is a measure that can be taken in fulfilment of the obligation to prevent and punish
genocide contained in Article I of the Convention.16
18. The Court furthermore noted that "in the Court's view, the acts complained of by
the Applicant appear to be capable of falling within the provisions of the Genocide
Convention"17 and that, with regard to the Russian Federation's assertion the its
"special military operation" is based on Article 51 of the UN Charter and customary
international law "certain acts or omissions may give rise to a dispute that falls
within the ambit of more than one treaty"18, concluding that this "does not ( ... )
preclude a prima fade finding by the Court that the dispute presented in the
Application relates to the interpretation, application and fulfillment of the Genocide
Convention"19.
15 Alleged Violations of the 1955 Treaty of Amity, Economic Relations, and Consular Rights (Islamic
Republic of Iran v. United States of America), Preliminary Objections, Judgment of 3 February 2021, para.
56.
16 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide {Ukraine v. Russian Federation), Order of 16 March 2022, para. 45.
17 Ibid, para. 45.
18 Ibid, para. 46.
19 Ibid, para. 46.
19. Therefore, a dispute under Article IX of the Convention clearly exists between
Ukraine and the Russian Federation.
B. The Dispute Relates to the Interpretation, Application, or Fulfilment of the
Convention
20. Second, the Portuguese Republic further observes that the dispute relates to the
interpretation, application, or fulfilment of the Convention.
21. The Portuguese Republic is of the view that Article IX constitutes a broad
jurisdictional clause, allowing the Court to adjudicate upon a vast array of disputes
concerning the interpretation, application, or fulfilment by a State Party of its
obligations under the Convention.
22. The usual meaning of the phrase "relating to the interpretation, application or
fulfilment of the Convention" may be divided in two elements:
a) The first element ("relating to") establishes a link between the dispute and the
Convention;
b) The second element ("interpretation, application or fulfilment of the
Convention") encompasses different scenarios. 20
23. Regarding the first element ("relating to"), the Portuguese Republic considers that
an allegation by a State Party to the Convention that another State Party to the
Convention has committed genocide establishes a link between the dispute and the
Convention, since the Convention contains elements that both State Parties have
accepted as being essential to assess whether a genocide has been committed.
20 As Kolb has observed, Article IX of the Convention is «a model of clarity and simplicity, opening the
seizing of the Court as largely as possible» - R. Kolb, "The Compromissory Clause of the Convention", in:
Paola Gaeta (ed.), The UN Genocide Convention: A Commentary, (OUP 2009), p. 420.
24. The second element ("interpretation, application and fulfilment of the Convention")
encompasses four different concepts. While interpretation is typically understood
as the process of "explaining the meaning" of a legal norm, application is the "action
of putting something into operation" in a given case21. The term fulfilment partially
overlaps with the latter, and it may be understood to refer to an application that
"meets the requirements" of a norm.22 Finally, the reference to the Convention
makes clear that the compromissory clause refers to the provisions of the
Convention.
25. The inclusion of the term fulfilment is
unique as compared with the compromissory clauses found in other multilateral treaties which
provide for submission of the International Court of such disputes between Contracting Parties as
relate to the interpretation or application of the treaties in question.23
26. It appears that by inserting all the three alternative terms, the drafters of the
Convention had sought to "give a coverage as exhaustive as possible to the
compromissory clause" and to "close down all possible loopholes".24 The inclusion
of the term fulfilmentthus supports a broad interpretation of Article IX.25
27. Finally, the use of the expression of the Convention confirms the broad scope of the
compromissory clause. It makes clear that Article IX relates to the entire life of the
Convention, including a wide range of breaches thereof.26
21 C. Tams, Article IX, note 45, in: Tams/Gerster/Schiffbauer, Convention on the Prevention and
Punishment of Genocide, A Commentary (Beck 2014).
22 c. Tams (n 18), Article IX, note 45.
23 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia and
Herzegovina v. Serbia and Montenegro), Preliminary Objections, Declaration of Judge Oda, I.C.J. Reports
1996 (II), p. 627, para. 5.
24 C. Tams (note 18), Article IX, note 45; R. Kolb, Scope Ratione Materiae, in: Paola Gaeta (ed), The UN
Genocide Convention: A Commentary, (OUP 2009), p. 451.
25 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide {Ukraine v. Russian Federation}, Joint Declaration of Intervention of the Governments of Canada
and the Kingdom of the Netherlands of 7 December 2022, para. 29.
26 R. Kolb, Scope Ratione Materiae (note 21), p. 453 with an account of the case law.
C. The Dispute relates to Obligations Under or Connected with the Convention
28. Third, the Portuguese Republic is of the view that the dispute in question relates to
substantive obligations under or connected with the Convention. In fact, the
jurisdiction ratione materiae of the Court includes the competence to address
allegations of genocide that contravene the limits imposed by international law, as
they raise the question of compliance with Article I of the Convention, which in turn
provides context for the construction of Article IX.
29. Article I of the Convention reads as follows:
The Contracting Parties confirm that genocide, whether committed in time of peace or in time of
war, is a crime under international law which they undertake to prevent and to punish.
30. In accordance with Article I of the Convention, all States Parties are obliged to
prevent and punish genocide by employing 11all means reasonably available so as to
prevent genocide as far as possible" .27 However, in fulfilling their duty to prevent
genocide, States Parties must act within the limits permitted by international law28,
including, among others, the limits imposed by the definition of 'genocide', the
principle of good faith, the prohibition of abuse of law, the obligation to settle
disputes peacefully, or the principle of sovereignty. A State may not claim to enforce
international law by violating international law. Therefore, if a State acts beyond
the limits permitted by international law in the case at hand, the acts of the State
may constitute a breach of the Convention.
27 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia and
Herzegovina v. Serbia and Montenegro), Judgment, I.C.J. Reports 2007, p. 43, at p. 221, para. 430.
28 Case Concerning Application of the Convention on the Prevention and Punishment of the Crime of
Genocide (Bosnia and Herzegovina v. Serbia and Montenegro), Judgment, I.C.J. Reports 2007, p. 43, at p.
221, para. 430; Allegations of Genocide under the Convention on the Prevention and Punishment of the
Crime of Genocide {Ukraine v. Russian Federation), Order of 16 March 2022, para. 57.
31. As mentioned above, and as discussed in the Court's Provisional Measures Order of
16 March 2022, the substance of the disputed between these two parties to the
Genocide Convention relates to two main questions:
whether certain acts allegedly committed by Ukraine in the Luhansk and Donetsk regions amount to
violation of its obligations under the Genocide Convention, as well as whether the use of force by
the Russian Federation for the stated purpose of preventing and punishing alleged genocide is a
measure that can be taken in fulfillment of the obligation to prevent genocide contained in Article I
of the Convention. 29
32. Whether or not certain specific facts amount to genocide that would trigger Article
I of the Convention is not a matter left to the subjective determination of one
interested party. Article II of the Convention deals with the definition of genocide
and Article Ill lists five modes of committing genocide. The elements of genocide
are already well-established in the case law of the Court and they support the
current interpretation. In particular, in order for genocide to occur, there is a
requirement to establish, based on compelling evidence, both genocidal action and
a (specific) genocidal intent next to the mental elements present in the acts listed
in Article 11.30
33. In carrying out their duty under Article I States Parties must act in good faith. 31 As
"one of the basic principles governing the creation and performance of legal
obligations"32
, it follows from the obligation to act in good faith that a State Party
to the Convention shall abstain from undermining the object and purpose of the
Convention underlying Article I or abuse its provisions. Failing to do so may result in
an abuse of law and consequent breach of the Convention.
29 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide {Ukraine v. Russian Federation), Order of the Court of 16 March 2022 on the Request for the
Indication of Provisional Measures, para. 45.
3° Case Concerning Application of the Convention on the Prevention and Punishment of the Crime of
Genocide (Bosnia and Herzegovina v. Serbia and Montenegro), Judgment, I.C.J. Reports 2007 (I), p. 43, at
pp. 121-122, paras. 186-189.
31 Articles 26 and 31(1) of the Vienna Convention on the Law of Treaties; Gabcikovo-Nagymaros Project
{Hungary/Slovakia), Judgment, I.C.J. Reports 1997, p. 7, at p. 79, para. 142.
32 Nuclear Tests (Australia v. France}, I.C.J. Reports 1974, p. 253, at p. 268, para. 46.
34. Where a State has not carried out in good faith an assessment of genocide or serious
risk of genocide, it cannot invoke the "undertak[ing] to prevent" genocide in Article
I of the Convention as a justification for its conduct. This of course includes conduct
which involves the threat or use of force, as underlined by the Court in the case Oil
Platforms33
.
35. The Convention's object and purpose and the high values and principles it protects
also prohibits any possibility of a State Party to abuse its provisions and invoke them
for any other end or purpose than those foreseen in the Convention. The
Portuguese Republic emphasizes that all State Parties shall be engaged in
preventing and punishing genocide worldwide for the benefit of humankind, and
not in order to pursue their own interests.
36. A State is under a due diligence obligation to gather evidence from independent
sources before making any allegation of genocide against another State. In the same
vein, a State may not take unlawful action based on such abusive allegations. In
fact, it constitutes good practice to rely on the results of independent investigations
under United Nations auspices34 before qualifying a situation as genocide.
37. Furthermore, Article VIII of the Genocide Convention provides that:
Any Contracting Party may call upon the competent organs of the United Nations to take such action
under the Charter of the United Nations as they consider appropriate for the prevention and
suppression of acts of genocide or any of the other acts enumerated in article Ill.
33 Oil Platforms (Islamic Republic of Iran v. United States of America), Preliminary Objections, Judgment,
I.C.J. Reports 1996, pp. 811-812, para. 21. See also Allegations of Genocide under the Convention on the
Prevention and Punishment of the Crime of Genocide {Ukraine v. Russian Federation), Declaration of
Intervention of Australia of 30 September 2022, para. 41.
34 See for example the reliance of The Gambia on the reports of the Independent International FactFinding
Mission on Myanmar established by the UN Human Rights Council before bringing a case to the
Court; for details see Application of the Convention on the Prevention and Punishment of the Crime of
Genocide (The Gambia v. Myanmar}, Judgment of 22 July 2022, at pp. 25-27, paras. 65-69.
38. The prevention and suppression of genocide is not a domestic matter but concerns
the international community as a whole. States Parties may call upon competent
organs of the United Nations to take the necessary action under the Charter for the
prevention and suppression of acts of genocide. Both the Security Council and the
General Assembly are "competent organs" who may take collective action, either
by a non-binding General Assembly resolution or by Security Council enforcement
action under Chapter VII. In addition, Article IX of the Convention confers the right
to seize the Court regarding disputes under the Convention.
39. The duty to prevent genocide is not exhausted by Article Vlll35, including when the
competent organs of the United Nations have manifestly failed to act. However, the
legality of any unilateral measure must always be assessed against the obligation
set out in Article VIII and other applicable international law obligations, including
those enshrined in the Charter of the United Nations. In fact, the obligation to
prevent genocide provided for in Article I of the Convention does not provide by
itself a legal basis for the use of force in violation of Article 2, paragraph 4, of the
Charter of the United Nations.
40. Rather than making an abusive allegation of genocide and act against another State
without having discharged its due diligence obligations, a State should seize the
United Nations' political or judicial organs36. In fact, it would undermine the
Convention's credibility as a universal instrument to outlaw the abhorrent crime of
genocide if its authority could be abused by any State Party without possibility of
review by the Court.
35 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia and
Herzegovina v. Serbia and Montenegro), Judgment, I.C.J. Reports 2007, p. 43, at p. 219-220, para. 427.
36 Order on Provisional Measures (n 9) Separate Opinion of Judge Robinson, para. 30.
41. Therefore, Article IX also gives effect to the parties' pre-existing obligations under
Article 2(3) of the UN Charter and customary international law to settle all their
disputes peacefully37
.
42. Furthermore, allegations of genocide against a State are extremely serious and are
susceptible to affect the credibility of a State and thus its capacity - and that of its
representatives - to conduct diplomatic relations, or any other type of international
relations with public and private actors, as any other sovereign State. Hence, a
determination on whether a State is or not responsible for acts of genocide has also
an important connection with the effective exercise of its sovereign competences.
43. In conclusion, the jurisdiction of the Court extends to disputes concerning unlawful
action for the stated purpose of preventing and punishing alleged genocide.38
Therefore, the Court has jurisdiction ratione materiae to declare the absence of
genocide when a State makes false allegations that are not based on existing facts,
thus constituting a violation of performance in good faith of the obligations under
the Convention resulting in an abuse of its provisions.
D. The Claim was Submitted by one of the Parties to the Dispute
44. Fourth, any party to the dispute may seize the Court under Article IX, including the
party which is the victim of an abusive allegation of genocide or of any unlawful
action as a means for prevention and punishment of genocide.
45. There is a dispute on the interpretation, application, or fulfilment of the Convention
when one State Party alleges that another State Party has committed genocide39. In
such situation, the Court must verify the factual basis for the allegation and whether
37 Allegations of Genocide under the Convention on the Prevention and Punishment of the Crime of
Genocide (Ukraine v. Russian Federation}, Declaration of Intervention of New Zealand of 28 July 2022,
para. 25.
38 Order on Provisional Measures (n 9), p. 11, para. 45;
39 Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia and
Herzegovina v. Serbia and Montenegro), Judgment, I.C.J. Reports 2007, p. 43, at p. 75, para. 169.
it is or not satisfied that there were acts of genocide committed in violation of the
Convention. 40
46. As noted above, the concepts of "dispute" and "fulfilment" in Article IX are
sufficiently broad to allow the Court to issue a declaration that no genocide has
taken place in a given case or that the applicant State bears no responsibility for a
breach under the Convention, as alleged by another State.
47. Moreover, the wording of Article IX confirms that "any of the parties" to the dispute
may seize the Court. The gravity of the crime of genocide entails that any accusation
of commission of such crime is to be taken seriously, and may negatively affect the
credibility of the State - and of its representatives - that has been accused of
genocide. Genocide is an odious scourge of concern to the international community
as a whole. Thus, in a dispute concerning whether a State has engaged in a conduct
contrary to the Convention, the State accused of such conduct should have the
same right to submit the dispute to the Court as the State that has made the
accusation.
48. In addition, the erga omnes partes character of the Convention speaks against a
narrowly construed opportunity to seeking the judicial protection before the Court.
On the contrary, such an interpretation would risk precluding a victim State from
seeking relief from the Court in the face of abuses of the Convention. This would
undermine the Convention's credibility and efficiency as a universal instrument for
the prevention of genocide, as well as the role of the Court as a fundamental
mechanism for redress against abuses of international law.
4° Case Concerning Legality of Use of Force (Yugoslavia v. Portugal), Provisional Measures, Order of 2 June
1999, I.C.J. Reports 1999, p. 656, at pp. 669-670, paras. 35-40. Later, the ICJ declined its jurisdiction on
the ground that Serbia and Montenegro did not have access to the Court, at the time of the institution of
the proceedings, under Article 35 of the Statute (see ICJ, Case Concerning Legality of Use of Force {Serbia
and Montenegro v. Portugal), Preliminary Objections, Judgment of 15 December 2004, I.C.J. Reports 2004,
p. 1160).
Conclusion
For the reasons set out above, the Portuguese Republic is convinced that the Court has
jurisdiction to decide on the merits of the case concerning Allegations of Genocide under
the Convention on the Prevention and Punishment of the Crime of Genocide (Ukraine v.
Russian Federation: 32 States intervening).
Therefore, the Portuguese Republic respectfully submits that the Court should decide
that it has jurisdiction.
Respectfully,
Clara Nunes dos Santos
Ambassador of Portugal to the Kingdom of the Netherlands
Co-Agent of the Portuguese Republic
Written observations of Portugal on the subject-matter of its intervention