¹ See, for example, L. Boisson de Chazournes, Interactions between Regional and Universal Organizations: A Legal Perspective (2017); A. Delgado Casteleiro, The International Responsibility of the European Union: From Competence to Normative Control (2016); G. Wilson, The United Nations and Collective Security (2014); N. Tsagourias and N.D. White, Collective Security: Theory, Law and Practice (2013); A. Orakhelashvili, Collective Security (2011); M. Forteau, Droit de la securité collective et droit de responsabilité de l'Etat (2006).

² M.P. Moelle, The International Responsibility of International Organisations: Cooperation in Peacekeeping Operations (2017), 2.

³ Ibid., at 7.

⁴ Ibid., at 10.

⁵ Ibid., at 160.

⁶ Joint United Nations-African Union Framework for Enhanced Partnership in Peace and Security, 19 April 2017, available at unoau.unmissions.org/sites/default/files/jount_un-au_framework_for_an_enhanced_partnership_in_peace_and_security.pdf

⁷ Moelle, supra note 2, at 160.

⁸ Ibid., at 154.

⁹ Ibid., at 162.

¹⁰ Ibid., at 5.

¹¹ Ibid., at 165–78.

¹² Ibid., at 177.

¹³ Ibid., at 178.

¹⁴ Ibid.

¹⁵ Ibid., at 159.

¹⁶ Ibid., at 177.

¹⁷ Ibid., at 208.

¹⁸ Ibid., at 208; see also at 173–5.

¹⁹ Ibid., at 270–1.

²⁰ Ibid., at 183–6; see also at 169–72.

²¹ Ibid., at 185.

²² Ibid., at 162.

²³ Ibid., at 323.

²⁴ Ibid., at 271.

²⁵ Ibid., at 273–98.

²⁶ Ibid., at 285.

²⁷ Ibid., at 284–98 and 319–20.

²⁸ Ibid., at 325.

²⁹ Ibid., at 328–9.