As ad hoc coalitions (AHCs) proliferate, particularly on the African continent, two questions crystallize. First, what consequences do they bring about for the existing institutional security landscape? And second, how can the trend of AHCs operating alongside instead of inside international organizations be captured and explored conceptually? To answer these questions, we closely examine the Multinational Joint Task Force (MNJTF) fighting Boko Haram and its changing relationship to the African Union. Through the case-study and a review of policy and academic literatures, the article launches the concept of deinstitutionalization and how it can be characterized. We identify three features of deinstitutionalization: AHCs can bypass standard procedures for decision-making processes, whittle down established institutional scripts and shift resource allocations. We detail how the AHCs contribute to changing practices of financing international peace and security operations, with an examination of European Union and United Nations policies and practices. In sum, the article unwraps processes of deinstitutionalization and identifies three forms of rationales for this process: lack of problem-solving capacity, limited adaptability and path dependency.

中文翻译：

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特设联盟如何使国际机构非制度化

随着特设联盟（AHC）的激增，特别是在非洲大陆，两个问题变得更加明确。首先，它们会给现有的制度安全格局带来什么后果？其次，如何从概念上捕捉和探索 AHC 与国际组织一起运作而不是在国际组织内部运作的趋势？为了回答这些问题，我们仔细研究了打击博科圣地的多国联合特遣部队（MNJTF）及其与非洲联盟不断变化的关系。通过案例研究以及对政策和学术文献的回顾，本文提出了去制度化的概念及其特征。我们确定了去机构化的三个特征：AHC 可以绕过决策过程的标准程序、削弱既定的机构脚本并改变资源分配。我们详细介绍了 AHC 如何为改变国际和平与安全行动融资的做法做出贡献，并审查了欧盟和联合国的政策和做法。总之，本文揭示了去机构化的过程，并确定了这一过程的三种形式的理由：缺乏解决问题的能力、有限的适应性和路径依赖。