Abstract
A century ago, chemical weapons were used in World War I, with their use during the second battle of Ypres, in particular on 22 April 1915, demonstrating their nature as weapons of mass destruction. On 21 August 2013, during the Syrian civil war, sarin-filled rockets hit the Ghouta suburbs of Damascus, killing a large number of civilians. It is against the background of the indeed limited use of chemical weapons over the last century that the steps towards a nearly universal prohibition thereof are analysed. The starting point is early steps towards only prohibiting the use of chemical weapons (primarily focusing upon the 1899/1907 Hague Regulations and the 1925 Geneva Protocol) and their emerging customary law nature. With the adoption of the 1993 Chemical Weapons Convention, the prohibition of use was strengthened not only in scope but also by linking it to pertinent disarmament and arms control provisions. The latest steps address individual criminal accountability for using chemical weapons as a means of warfare, based upon the 1998 Rome Statute and the 2010 Kampala amendments thereto. As the concluding section illustrates, the effectiveness of a century of pertinent international law making depends on the universality of the prohibition to use chemical weapons and the common efforts of all stakeholders to ensure the integrity of the regime established by these various layers of international law.
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Notes
- 1.
- 2.
Heller 1984, pp. 4–7.
- 3.
On the notion of weapons of mass destruction see Strydom 2013, paras 1–2.
- 4.
Heller 1984, p. 10.
- 5.
UN Doc. A/7575/Rev. 1 (= UN Doc. S/9292/Rev. 1), para 3.
- 6.
- 7.
Balfour 2002, pp. 123–156.
- 8.
Grip and Hart 2009.
- 9.
Tanaka 1988.
- 10.
- 11.
Terrill 1991.
- 12.
UN Doc. S/17911; Dunn 1987.
- 13.
Kelly 2008, pp. 33–40.
- 14.
Smithson 2000.
- 15.
Dolnik and Pilch 2003.
- 16.
UN Doc. A/67/997 (= UN Doc. S/2013/553).
- 17.
Translation: “War is waged with weapons, not with poison” (Valerius Maximus, Factorum et Dictorum Memorabilium, Liber VI:5.1). For other sources and additional constraints over time, see Zanders 2003, pp. 392–394.
- 18.
(1907) AJIL Supplement 1:95–96.
- 19.
Included in the Preamble of The Hague Convention (IV) respecting the Laws and Customs of War on Land (205 CTS 277): “Until a more complete code of the laws of war has been issued, the High Contracting Parties deem it expedient to declare that, in cases not included in the Regulations adopted by them, the inhabitants and the belligerents remain under the protection and the rule of the principles of the law of nations, as they result from the usages established among civilized peoples, from the laws of humanity, and the dictates of the public conscience” Zanders 2003, p. 394 rightly labels this as a “milestone”.
- 20.
Koplow 1990, p. 16.
- 21.
(1907) AJIL Supplement 1:96–103.
- 22.
205 CTS 277.
- 23.
(1907) AJIL Supplement 1:157–159.
- 24.
Tucker 2006, pp. 11–12.
- 25.
For an overview of pertinent arguments see Bothe 1973, p. 5.
- 26.
Pillet 1918, p. 218.
- 27.
- 28.
Castren 1954, p. 194.
- 29.
- 30.
Bothe 1973, pp. 6–7.
- 31.
- 32.
- 33.
Bothe 1973, pp. 9–11.
- 34.
94 LNTS 65.
- 35.
225 CTS 188; the first paragraph of Article 171 reads: “The use of asphyxiating, poisonous or other gases and all analogous liquids, materials or devices being prohibited, their manufacture and importation are strictly forbidden in Germany”.
- 36.
Kotzur 2008, paras 11–12.
- 37.
- 38.
Thomas and Thomas 1970, p. 73.
- 39.
It is noteworthy that the minor differences between the English and the French authentic texts were not meant to reduce the prohibition in scope: the French text refers to “gaz … similaires”, the English text to “other gases”.
- 40.
This is, among others, the conclusion arrived at by Baxter and Buergenthal 1970, p. 867.
- 41.
Boothby 2009, pp. 124–125.
- 42.
While treaty reservations as such do not affect existing customary international law, the content of the customary international law prohibition of chemical warfare is not necessarily identical in scope to the Geneva Protocol.
- 43.
1974 UNTS 45.
- 44.
Krutzsch 2014a, p. 66.
- 45.
- 46.
Krutzsch and Trapp 2014, p. 94: This “is needed to overcome any ambiguity and to identify the dividing line, agreed by the negotiators, that separates the chemicals designed for these non-prohibited purposes from chemical weapons”.
- 47.
“as long as the types and quantities are consistent with such purposes”.
- 48.
Krutzsch and Trapp 2014, p. 97.
- 49.
Id., referring to the French and Spanish authentic texts.
- 50.
UN Doc. ST/SGB/1999/13 (observance by United Nations forces of international humanitarian law).
- 51.
Krutzsch and Trapp 2014, pp. 101–102.
- 52.
Krutzsch and Trapp 2014, pp. 77–80.
- 53.
Marauhn 1994, pp. 54–55, referring to CCD/PV.557 (United Kingdom), CCD/PV.635 (Sweden), CCD/505 (Yugoslavia).
- 54.
- 55.
Krutzsch and Trapp 2014, pp. 96–97.
- 56.
CD/500 (USA), CD/1143 (Australia); both documents explain the positions of these countries.
- 57.
CD/1116.
- 58.
CD/1116, p. 14.
- 59.
Krutzsch and Trapp 2014, pp. 97–99.
- 60.
ICRC 2013.
- 61.
- 62.
1125 UNTS 3.
- 63.
1108 UNTS 151.
- 64.
On the lex posterior rule Matz-Lück 2010, paras 14–17.
- 65.
Krutzsch 2014c, pp. 383–385.
- 66.
Zanders 2003, p. 398.
- 67.
211 UNTS 304.
- 68.
347 UNTS 3.
- 69.
Article I, para 2; Article IV, para 4, CWC.
- 70.
Article VIII CWC; for an analysis of the organization, see Tabassi 2001.
- 71.
Feakes 2002.
- 72.
Van Heck and Marauhn 1998.
- 73.
Kurzidem 1998.
- 74.
Trapp and Walker 2014, pp. 126–138.
- 75.
Asada 2014.
- 76.
- 77.
- 78.
Lak and Faraday 2014, pp. 358–359.
- 79.
- 80.
Tabassi and Dhavle 2014, p. 200 state: “Consistent with para 6 of the Preamble, the use of chemical weapons would be the gravest offence” (italics in the original).
- 81.
2187 UNTS 90.
- 82.
On the negotiations, see Zimmermann and Şener 2014, pp. 440–441.
- 83.
Cottier 2008, pp. 423–425.
- 84.
- 85.
Zimmermann and Şener 2014, pp. 438–439.
- 86.
Schabas 2013.
- 87.
- 88.
Akande 2013.
- 89.
999 UNTS 171.
- 90.
In addition, reference may be made to Article 22, para 2, Rome Statute, stipulating that the “definition of a crime shall be strictly construed” and that any such “definition shall be interpreted in favour of the person being investigated, prosecuted or convicted”. Whether this only applies after other interpretative methods have failed to clarify ambiguities is debatable; see Broomhall 2010, p. 726.
- 91.
For a slightly broader view, see Zimmermann and Şener 2014, p. 440.
- 92.
ICC Doc. ICC-PIDS-LT-03-002/11_Eng (2011), p. 26 note 48.
- 93.
Prosecutor v. Tadić, Case No. IT-94-1-AR72, Appeal on Jurisdiction, para 119.
- 94.
Reprinted in UN Doc. E/CN.4/1995/116.
- 95.
Conference on Security and Cooperation in Europe, Budapest Document 1994: Towards Genuine Partnership in a New Era, para 34 (1994).
- 96.
Prosecutor v. Tadić, Case No. IT-94-1-AR72, Appeal on Jurisdiction, para 120.
- 97.
Ibid., para 124.
- 98.
Ibid., para 127.
- 99.
But see Zimmermann and Şener 2014, p. 438.
- 100.
Annex I to ICC Doc. RC/Res.5.
- 101.
Akande 2013.
- 102.
ICC Doc. RC/Res.5, second preambular paragraph.
- 103.
Zanders 2002.
- 104.
Doswald-Beck 2013; Vandova 2013. Criticism may raised against the ruling of the European Court of Human Rights in the case of Finogenov and Others v. Russia, Applications nos. 18299/03 and 27311/03 (Judgment of 20 December 2011) on the account that the Court did not sufficiently address the quantities and qualities of the incapacitating agent applied.
- 105.
OPCW Doc. RC-3/NAT.72.
- 106.
Dunworth 2013.
- 107.
Pertinent documents are available at https://www.icrc.org/eng/what-we-do/other-activities/development-ihl/strengthening-legal-protection-compliance.htm.
- 108.
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Marauhn, T. (2016). The Prohibition to Use Chemical Weapons. In: Gill, T., Geiß, R., Krieger, H., McCormack, T., Paulussen, C., Dorsey, J. (eds) Yearbook of International Humanitarian Law Volume 17, 2014. Yearbook of International Humanitarian Law, vol 17. T.M.C. Asser Press, The Hague. https://doi.org/10.1007/978-94-6265-091-6_4
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