
European Union’s Military Operations:
e Use of an Adaptive Approach to Face Security (Dis)Order
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to this scholarship, this chapter draws on the complexity theory to explore military
operations and explain how the EU has adapted to changes in the security environment,
as well as the challenges this environment presents. Complex systems arise when a set
of elements or units become interconnected, so that changes taking place in individual
units or in the way units interact effect changes in other parts of the system. Moreover,
such systems exhibit their own properties and behaviors (Jervis 1997). eir open nature
creates dynamics that must be explained in terms of internal logics and relationships
with the environment. Interconnectivity indicates that each individual element exists in
relation to the others; thus, each part of the system is affected and influenced, at any time,
directly or indirectly, by at least one other part of the system (Ricigliano 2012). Moreover,
interconnectivity leads to emergence, which explains both how the elements of the system
interact with each other to maintain themselves and how new structures, forms, and
functions are generated by these interactions (Williams and Hummelbrunner 2010). e
new structures, forms, and functions in turn interact with, and causally impact, the parts
from which they emerged. Additionally, when small changes in any part of a system—or
in a system’s environment—produce large changes throughout that system, nonlinearity
is observed. Finally, complex systems potentially adapt according to feedback, since the
way they respond is conditioned by both past and present situations (Wight 2015). When
uncertainty and unpredictability prevail, systems manage through an adaptive process in
which resilience plays an important role. Resilience is “the ability of a system to resist,
absorb, recover from, or adapt to (adverse) changes in condition” (Cavelty and Giroux
2015, 211) while retaining essentially the same function, structure, and identity (Walker
et al. 2004). erefore, resilience also entails persistence (the capacity to remain in an
original state), adaptability (the capacity to adjust responses to changing external drivers
and internal processes), and transformability (the capacity to create a new domain when
conditions make the existing system untenable, thus moving it towards a new system)
(Gunderson 2000; Folke 2006; Scheffer 2009; Folke et al. 2010). Drawing on these key
assertions of complexity theory, this chapter aims to unveil how and why the EU has
moved in certain ways in the field of military operations and missions.
I argue that since their inception, EU military operations and missions have been
guided by tensions between the role the Union wants to play in the field of international
security and the dynamics of both the Union itself and the international system. Moreover,
in terms of military operations and missions, the EU has dealt with these tensions
through an adaptive approach that encompasses different phases, which are successively
characterized by ambitious expansion, contraction, and adjustment. To substantiate
this argument, I use qualitative analysis of quantitative data based on primary and
secondary sources. Data were collected from the EU’s Global Engagement project (Di
Mauro et al. 2017), EEAS factsheets, and publicly available information regarding these
operations and missions, with a focus on context, size, mandate, region of operation,
duration, risks involved, and budget allocated. ese elements were chosen to examine
the nature of military deployments that took place between 2003 and 2020. Additional
data were collected from various official speeches and documents about the EU’s military
engagement. Drawing parallels between intentions and reality, I demonstrate that the