individual criminal responsibility 439
Aggression
224
Aggression is recognised as a crime in customary international law.
Article 6 of the Nuremberg Charter defined its jurisdiction as includ-
ing ‘(a) Crimes against peace. Namely, planning, preparation, initiation,
or waging of a war of aggression or a war in violation of international
treaties, agreements or assurances, or participation in a common plan or
conspiracy for the accomplishment of any of the foregoing’ and a number
of defendants were convicted of offences under this head. General Assem-
bly resolution 95(1) affirmed the principles recognised by the Nuremberg
Charter and its judgment. Aggression was termed the ‘supreme interna-
tional crime’ in one of the judgments.
225
The Tokyo Charter included the
same principle as did Allied Control Council Law No. 10. General Assem-
bly resolution 3314 (XXIX) of 14 December 1974 contained a definition
of aggression in contravention of the Charter.
226
The crime of aggression
is referred to in article 5 of the Statute of the ICC, but in no other such
instrument. Indeed, article 5(2) provides that the Court cannot exercise
jurisdiction over the crime of aggression until a provision is adopted defin-
ing the crime and setting out the conditions under which the Court may
exercise jurisdiction with respect to it. The delay in achieving this has been
caused by several problems. The first is that, unlike the other substantive
international crimes, aggression is a crime of ‘leadership’ and necessarily
requires that it be determined as an initial point that the state, of whom the
accused is a ‘leader’ in some capacity, has committed aggression. This is a
wholly different proposition from asserting the responsibility of individ-
uals for genocide, war crimes or crimes against humanity. It is also unclear
what differences may exist between the state’s act of aggression and the
individual’s crime of aggression. Secondly, article 5(2) of the ICC Statute
provides that the conditions for the exercise of the Court’s jurisdiction
must be consistent with the relevant provisions of the UN Charter. The
Security Council has the competence under Chapter VII of the Charter
224
See e.g. Cryer et al., Introduction to International Criminal Law, chapter 13; and Werle,
Principles of International Criminal Law, part 6. See also Y. Dinstein, War, Aggression and
Self-Defence, 4th edn, Cambridge, 2005, and see further below, chapter 22, p. 1240.
225
See Judgment 186, 41 AJIL, 1947, p. 172.
226
See also the General Treaty for the Renunciation of War (the ‘Kellogg–Briand Pact’), 1928,
which condemned recourse to war as an instrument of international policy; article 1 of
the International Law Commission’s Draft Code of Offences against Peace and Security,
1954, and article 1(2) of the revised Draft Code adopted in 1996. Article 16 of the latter
instrument provides that a leader who as leader or organiser actively participates in or
orders the planning, preparation, initiation or waging of aggression committed by a state
shall be responsible for a crime of aggression.