For the purpose of this Statute, “war crimes” means:
(a) Grave breaches of the Geneva Conventions of 12 August 1949, namely, any of the following acts against persons or property protected under the provisions of the relevant Geneva Convention:
(i) Wilful killing;
(ii) Torture or inhuman treatment, including biological experiments;
(iii) Wilfully causing great suffering, or serious injury to body or health;
(iv) Extensive destruction and appropriation of property, not justified by military necessity and carried out unlawfully and wantonly;
(v) Compelling a prisoner of war or other protected person to serve in the forces of a hostile Power;
(vi) Wilfully depriving a prisoner of war or other protected person of the rights of fair and regular trial;
(vii) Unlawful deportation or transfer or unlawful confinement;
(viii) Taking of hostages.
(b) Other serious violations of the laws and customs applicable in international armed conflict, within the established framework of international law, namely, any of the following acts:
(i) Intentionally directing attacks against the civilian population as such or against individual civilians not taking direct part in hostilities;
(ii) Intentionally directing attacks against civilian objects, that is, objects which are not military objectives;
(iii) Intentionally directing attacks against personnel, installations, material, units or vehicles involved in a humanitarian assistance or peacekeeping mission in accordance with the Charter of the United Nations, as long as they are entitled to the protection given to civilians or civilian objects under the international law of armed conflict;
(iv) Intentionally launching an attack in the knowledge that such attack will cause incidental loss of life or injury to civilians or damage to civilian objects or widespread, long-term and severe damage to the natural environment which would be clearly excessive in relation to the concrete and direct overall military advantage anticipated;
(v) Attacking or bombarding, by whatever means, towns, villages, dwellings or buildings which are undefended and which are not military objectives;
(vi) Killing or wounding a combatant who, having laid down his arms or having no longer means of defence, has surrendered at discretion;
(vii) Making improper use of a flag of truce, of the flag or of the military insignia and uniform of the enemy or of the United Nations, as well as of the distinctive emblems of the Geneva Conventions, resulting in death or serious personal injury;
(viii) The transfer, directly or indirectly, by the Occupying Power of parts of its own civilian population into the territory it occupies, or the deportation or transfer of all or parts of the population of the occupied territory within or outside this territory;
(ix) Intentionally directing attacks against buildings dedicated to religion, education, art, science or charitable purposes, historic monuments, hospitals and places where the sick and wounded are collected, provided they are not military objectives;
(x) Subjecting persons who are in the power of an adverse party to physical mutilation or to medical or scientific experiments of any kind which are neither justified by the medical, dental or hospital treatment of the person concerned nor carried out in his or her interest, and which
cause death to or seriously endanger the health of such person or persons;
(xi) Killing or wounding treacherously individuals belonging to the hostile nation or army;
(xii) Declaring that no quarter will be given;
(xiii) Destroying or seizing the enemy’s property unless such destruction or seizure be imperatively demanded by the necessities of war;
(xiv) Declaring abolished, suspended or inadmissible in a court of law the rights and actions of the nationals of the hostile party;
(xv) Compelling the nationals of the hostile party to take part in the operations of war directed against
their own country, even if they were in the belligerent’s service before the commencement of the war;
(xvi) Pillaging a town or place, even when taken by assault;
(xvii) Employing poison or poisoned weapons;
(xviii) Employing asphyxiating, poisonous or other gases, and all analogous liquids, materials or devices;
(xix) Employing bullets which expand or flatten easily in the human body, such as bullets with a hard envelope which does not entirely cover the core or is pierced with incisions;
(xx) Employing weapons, projectiles and material and methods of warfare which are of a nature to cause superfluous injury or unnecessary suffering or which are inherently indiscriminate in violation of the international law of armed conflict, provided that such weapons, projectiles
and material and methods of warfare are the subject of a comprehensive prohibition and are included in an annex to this Statute, by an amendment in accordance with the relevant provisions set forth in articles 121 and 123;
(xxi) Committing outrages upon personal dignity, in particular humiliating and degrading treatment;
(xxii) Committing rape, sexual slavery, enforced prostitution, forced pregnancy, as defined in article
7, paragraph 2 (f), enforced sterilization, or any other form of sexual violence also constituting
a grave breach of the Geneva Conventions;
(xxiii) Utilizing the presence of a civilian or other protected person to render certain points, areas or
military forces immune from military operations;
(xxiv) Intentionally directing attacks against buildings, material, medical units and transport, and
personnel using the distinctive emblems of the Geneva Conventions in conformity with international law;
(xxv) Intentionally using starvation of civilians as a method of warfare by depriving them of objects indispensable to their survival, including wilfully impeding relief supplies as provided for under the Geneva Conventions;
(xxvi) Conscripting or enlisting children under the age of fifteen years into the national armed forces or using them to participate actively in hostilities.
(c) In the case of an armed conflict not of an international character, serious violations of article 3 common
to the four Geneva Conventions of 12 August 1949, namely, any of the following acts committed against persons taking no active part in the hostilities, including members of armed forces who have laid down their arms and those placed hors de combat by sickness, wounds, detention or any other
cause:
(i) Violence to life and person, in particular murder of all kinds, mutilation, cruel treatment and torture;
(ii) Committing outrages upon personal dignity, in particular humiliating and degrading treatment;
(iii) Taking of hostages;
(iv) The passing of sentences and the carrying out of executions without previous judgement pronounced by a regularly constituted court, affording all judicial guarantees which are generally recognized as indispensable.
(d) Paragraph 2 (c) applies to armed conflicts not of an international character and thus does not apply to
situations of internal disturbances and tensions, such as riots, isolated and sporadic acts of violence
or other acts of a similar nature.
(e) Other serious violations of the laws and customs applicable in armed conflicts not of an international
character, within the established framework of international law, namely, any of the following acts:
(i) Intentionally directing attacks against the civilian population as such or against individual
civilians not taking direct part in hostilities;
(ii) Intentionally directing attacks against buildings, material, medical units and transport, and
personnel using the distinctive emblems of the Geneva Conventions in conformity with international law;
(iii) Intentionally directing attacks against personnel, installations, material, units or vehicles involved in a humanitarian assistance or peacekeeping mission in accordance with the Charter of the United Nations, as long as they are entitled to the protection given to civilians or civilian objects under the international law of armed conflict;
(iv) Intentionally directing attacks against buildings dedicated to religion, education, art, science or
charitable purposes, historic monuments, hospitals and places where the sick and wounded are collected, provided they are not military objectives;
(v) Pillaging a town or place, even when taken by assault;
(xix) Employing bullets which expand or flatten easily in the human body, such as bullets with a hard envelope which does not entirely cover the core or is pierced with incisions;
(xx) Employing weapons, projectiles and material and methods of warfare which are of a nature
to cause superfluous injury or unnecessary suffering or which are inherently indiscriminate
in violation of the international law of armed conflict, provided that such weapons, projectiles
and material and methods of warfare are the subject of a comprehensive prohibition and are included in an annex to this Statute, by an amendment in accordance with the relevant provisions set forth in articles 121 and 123;
(xxi) Committing outrages upon personal dignity, in particular humiliating and degrading treatment;
(xxii) Committing rape, sexual slavery, enforced prostitution, forced pregnancy, as defined in article
7, paragraph 2 (f), enforced sterilization, or any other form of sexual violence also constituting
a grave breach of the Geneva Conventions;
(xxiii) Utilizing the presence of a civilian or other protected person to render certain points, areas or
military forces immune from military operations;
(xxiv) Intentionally directing attacks against buildings, material, medical units and transport, and
personnel using the distinctive emblems of the Geneva Conventions in conformity with international law;
(xxv) Intentionally using starvation of civilians as a method of warfare by depriving them of objects indispensable to their survival, including wilfully impeding relief supplies as provided for under the Geneva Conventions;
(xxvi) Conscripting or enlisting children under the age of fifteen years into the national armed forces or using them to participate actively in hostilities
https://www.icc-cpi.int/sites/default/files/RS-Eng.pdf
For the purpose of this Statute, “war crimes” means:
"This Statute" refers to the Rome Statute of the International Criminal Court (ICC). Israel and the United States are not parties to the Rome Statute and do not recognize the ICC. The ICC lacks jurisdiction and that particular statute does not apply.
See below for a Nuremburg trial result.
http://werle.rewi.hu-berlin.de/High%20Command%20Case.pdf
The United States of America vs. Wilhelm von Leeb et al.
US Military Tribunal Nuremberg, Judgment of 27 October 1948
The High Command Trial, pp. 74-75
6. CRIMINAL CONDUCT PERTAINING TO THE SIEGE OF LENINGRADLeningrad was encircled and besieged. Its defenders and the civilian population were in great straits and it was feared the population would undertake to flee through the German lines. Orders were issued to use artillery to "prevent any such attempt at the greatest possible distance from our own lines by opening fire as early as possible, so that the infantry, if possible, is spared shooting on civilians." We find this was known to and approved by von Leeb. Was it an unlawful order?
"A belligerent commander may lawfully lay siege to a place controlled by the enemy and endeavor by a process of isolation to cause its surrender. The propriety of attempting to reduce it by starvation is not questioned. Hence, the cutting off of every source of sustenance from without is deemed legitimate. It is said that if the commander of a besieged place expels the noncombatants, in order to lessen the number of those who consume his stock of provisions, it is lawful, though an extreme measure, to drive them back so as to hasten the surrender."1 We might wish the law were otherwise but we must administer it as we find it. Consequently, we hold no criminality attached on this charge.
1 Hyde, International Law (Little, Brown and Co., Boston, 1945) 2d Revised Edition, vol. Ill, pp. 1802-1803.