This book brings to fruition the research done during the CEA-ISCTE project ‘’Monitoring Conflicts in the Horn of Africa’’, reference PTDC/AFR/100460/2008. The Portuguese Foundation for Science and Technology (FCT) provided funding for this project. The chapters are based on first-hand data collected through fieldwork in the region’s countries between 4 January 2010 and 3 June 2013. The project’s team members and consultants debated their final research findings in a one-day Conference at ISCTE-IUL on 29 April 2013. The following authors contributed to the project’s final publication: Alexandra M. Dias, Alexandre de Sousa Carvalho, Aleksi Ylönen, Ana Elisa Cascão, Elsa González Aimé, Manuel João Ramos, Patrick Ferras, Pedro Barge Cunha and Ricardo Real P. Sousa.

As the so-called Arab Spring has slid into political uncertainty, lingering insecurity and civil conflict, European and American initial enthusiasm for anti-authoritarian protests has given way to growing concerns that revolutionary turmoil in North Africa may in fact have exposed the West to new risks. Critical in cementing this conviction has been the realisation that developments originated from Arab Mediterranean countries and spread to the Sahel have now such a potential to affect Western security and interests as to warrant even military intervention, as France’s operation in Mali attests. EU and US involvement in fighting piracy off the Horn of Africa had already laid bare the nexus between their security interests and protracted crises in sub-Saharan Africa. But the new centrality acquired by the Sahel after the Arab uprisings – particularly after Libya’s civil war – has elevated this nexus to a new, larger dimension. The centre of gravity of Europe’s security may be swinging to Africa, encompassing a wide portion of the continental landmass extending south of Mediterranean coastal states. The recrudescence of the terrorist threat from Mali to Algeria might pave the way to an American pivot to Africa, thus requiring fresh thinking on how the European Union and the United States can better collaborate with each other and with relevant regional actors.

The humanitarian crises caused by civil conflicts and wars in Africa are too great in scope for an adequate and effective continental response. The founding of the African Union and the drafting of the Responsibility to Protect doctrine, the basis for collective action against genocide, ethnic cleansing and crimes against humanity makes this a critical time to reflect on how best to address regional conflicts. This book responds to new regional conflicts over health, water, land and food security in the world's poorest, most socially fragmented continent. The work assesses African regional security arrangements and provides new policy recommendations for the future.

This book develops the idea that since decolonisation, regional patterns of security have become more prominent in international politics. The authors combine an operational theory of regional security with an empirical application across the whole of the international system. Individual chapters cover Africa, the Balkans, CIS Europe, East Asia, EU Europe, the Middle East, North America, South America, and South Asia. The main focus is on the post-Cold War period, but the history of each regional security complex is traced back to its beginnings. By relating the regional dynamics of security to current debates about the global power structure, the authors unfold a distinctive interpretation of post-Cold War international security, avoiding both the extreme oversimplifications of the unipolar view, and the extreme deterritorialisations of many globalist visions of a new world disorder. Their framework brings out the radical diversity of security dynamics in different parts of the world.

Fighting for Peace in Somalia provides the first comprehensive analysis of the African Union Mission in Somalia (AMISOM), an operation deployed in 2007 to stabilize the country and defend its fledgling government from one of the world's deadliest militant organizations, Harakat al-Shabaab. The book's two parts provide a history of the mission from its genesis in an earlier, failed regional initiative in 2005 up to mid-2017, as well as an analysis of the mission's six most important challenges, namely, logistics, security sector reform, civilian protection, strategic communications, stabilization, and developing a successful exit strategy. These issues are all central to the broader debates about how to design effective peace operations in Africa and beyond. AMISOM was remarkable in several respects: it would become the African Union's (AU) largest peace operation by a considerable margin deploying over 22,000 soldiers; it became the longest running mission under AU command and control, outlasting the nearest contender by over seven years; it also became the AU's most expensive operation, at its peak costing approximately US$1 billion per year; and, sadly, AMISOM became the AU's deadliest mission. Although often referred to as a peacekeeping operation, AMISOM's troops were given a range of daunting tasks that went well beyond the realm of peacekeeping, including VIP protection, war-fighting, counterinsurgency, stabilization, and state-building as well as supporting electoral processes and facilitating humanitarian assistance.