From Containment to Cooperation: The Rise and Fall of the Sana’a Forum and the Reordering of the Horn of Africa

By David Yeh

The rise and fall of the Sana’a Forum for Cooperation represents one of the most revealing episodes in the modern political history of the Horn of Africa and the Arabian Peninsula. Established on October 31st 2002, the forum brought together Yemen, Ethiopia, and Sudan as founding members, with Somalia joining later in 2004. At the time, it was presented as a forward-looking regional initiative designed to promote economic cooperation, strengthen collective security, and address shared challenges such as terrorism, cross-border insecurity, and regional instability. On paper, it appeared to embody the aspirations of a region seeking to move beyond conflict toward a future defined by integration and shared prosperity. Yet beneath these formal objectives lay deeper political tensions and strategic calculations that would ultimately shape both its trajectory and its demise. Over time, what seemed like a promising framework for cooperation revealed itself to be structurally fragile, politically imbalanced, and strategically exclusionary.

From its inception, the Sana’a Forum was deeply influenced by the geopolitical realities of the early 2000s, particularly the aftermath of the Eritrea – Ethiopia border war. Relations between Eritrea and Ethiopia remained tense and unresolved, characterized by a “no peace, no war” stalemate that defined the broader regional climate. Eritrea, despite its strategic importance and long Red Sea coastline, was deliberately excluded from the forum. This exclusion was not incidental; it reflected a broader alignment of political interests among member states that often converged in opposition to Eritrea’s policies and leadership under President Isaias Afwerki. While the forum presented itself as a cooperative platform, its structure suggested a different reality one shaped as much by rivalry as by partnership.

The contradiction at the heart of the Sana’a Forum was evident from the beginning. It sought to promote regional stability while simultaneously excluding a key regional actor. In doing so, it undermined its own foundational logic. Regional cooperation in a geopolitically interconnected area such as the Horn of Africa cannot be effective if it is built on selective participation. Eritrea’s absence created a gap that could not be easily bridged, leaving the forum unable to fully address the very security and economic issues it claimed to prioritize. Instead of fostering cohesion, it reinforced fragmentation, creating parallel political and security dynamics rather than a unified framework.

Critics of the forum have long argued that its underlying purpose extended beyond economic and security cooperation into the realm of strategic containment. According to this perspective, the alliance functioned as a coordinated effort to exert pressure on Eritrea through diplomatic isolation, economic constraints, and potential military coordination. The broader aim, as perceived by Eritrea and its supporters, was to weaken the government and reshape the regional balance of power. Whether this interpretation fully captures the intentions of all member states is open to debate, but the perception itself was enough to influence behavior. In international relations, perceptions often drive actions, and in this case, the perception of hostility contributed to deepening mistrust and limiting opportunities for engagement.

Despite these pressures, Eritrea adopted a strategy that emphasized endurance and calculated restraint. Rather than reacting with immediate confrontation, it focused on maintaining internal stability and exploring alternative regional alignments. President Isaias Afwerki consistently conveyed a belief that time would ultimately determine the outcome of these geopolitical tensions. This approach, while frequently criticized as inflexible, reflected a long-term strategic outlook that prioritized sovereignty and resilience over short term concessions. It also highlighted a miscalculation among those who believed that external pressure alone could destabilize a state with strong centralized control and a cohesive national identity.

As the years passed, the internal weaknesses of the Sana’a Forum became increasingly apparent. Member states faced difficulties aligning their political and economic priorities, and the absence of strong institutional mechanisms limited the forum’s effectiveness. While it remained active into the late 2000s, including meetings and initiatives as late as 2008, its capacity to function as a coherent and influential regional body steadily declined. Economic cooperation remained limited, and security coordination was often undermined by divergent national interests. The forum’s ambitions far exceeded its practical capabilities, and its lack of inclusivity continued to hinder its credibility.

The turning point came with the broader wave of political upheaval that swept across the Middle East and North Africa in the early 2010s. The Arab Spring introduced a new level of uncertainty and instability that fundamentally altered regional dynamics. Governments that had previously focused on external cooperation were suddenly confronted with internal challenges that demanded immediate attention. In this shifting landscape, the already fragile cohesion of the Sana’a Forum began to unravel more rapidly. The priorities of member states shifted inward, and the capacity for coordinated regional action diminished significantly.

Nowhere was this transformation more consequential than in Yemen, the host nation and symbolic center of the forum. Yemen’s internal crisis escalated dramatically when the Houthi movement seized control of the capital, Sana’a, in 2014. This event marked the beginning of a prolonged and devastating civil war that would reshape the country’s political landscape. The subsequent intervention by a Saudi led coalition in 2015 further intensified the conflict, fragmenting Yemen’s political system and rendering it incapable of fulfilling any leadership role within the forum. Without a stable anchor, the Sana’a Forum lost its central point of coordination, accelerating its decline into irrelevance.

By the mid 2010s, the forum had effectively ceased to function as a meaningful regional organization. Its collapse was not marked by a formal declaration but by a gradual erosion of its activities and influence. This quiet dissolution reflected the deeper structural flaws that had plagued it from the beginning. An alliance built on exclusion and shaped by geopolitical rivalry proved unable to adapt to a rapidly changing environment. Instead of serving as a stabilizing force, it became another casualty of the very instability it sought to address.

In the aftermath of the forum’s collapse, the region experienced a series of profound transformations. Countries that had once been central to the alliance faced their own internal challenges. Yemen descended into prolonged conflict, Somalia continued to grapple with instability, and Ethiopia particularly in the years following the leadership of Meles Zenawi underwent significant political changes marked by both reform and tension. Sudan, which had earlier distanced itself from the forum and moved toward improved relations with Eritrea, followed a complex path but demonstrated at times the potential benefits of shifting away from rigid alliances toward more flexible engagement.

Amid these changes, Eritrea maintained a relatively stable internal environment compared to many of its neighbors. While it faced criticism and remained subject to international pressure, it avoided the large scale internal conflicts that affected other countries in the region. This divergence between expectation and outcome became one of the most notable features of the post Sana’a Forum era. Predictions that Eritrea would descend into instability similar to Somalia did not materialize, while several states associated with the forum experienced precisely the kinds of crises they had once anticipated for others.

The collapse of the Sana’a Forum did not signify the end of regional cooperation; rather, it marked the end of one model and the gradual emergence of another. The years that followed saw the development of new diplomatic approaches that were less rigid and more responsive to changing realities. Among the most significant of these developments was the rapprochement between Ethiopia and Eritrea in 2018, which brought an end to two decades of formal hostility. This shift represented a major turning point in regional politics, signaling a move away from entrenched rivalry toward pragmatic engagement.

The normalization of relations between these two countries reflected a broader recognition of mutual interests. Ethiopia, with its large population and growing economy, requires stable and reliable access to maritime routes to sustain its development. Eritrea, in turn, stands to benefit from reduced isolation and increased economic interaction. The decision to pursue peace was not simply a symbolic gesture; it was a strategic calculation grounded in practical necessity. Ending a prolonged state of conflict opened the door to new possibilities for trade, investment, and regional connectivity that had been previously constrained.

This shift toward pragmatism also underscores an important lesson about the process of regional integration. While idealized visions often emphasize immediate openness and grassroots interaction, sustainable integration typically begins with agreements among states. Security arrangements and economic partnerships at the governmental level create the conditions necessary for broader societal engagement. In the context of the Horn of Africa, the normalization of relations between key states represents a foundational step toward deeper and more inclusive cooperation.

At the same time, the region’s strategic importance has attracted increasing attention from external actors. Positioned along critical global trade routes, the Horn of Africa has become a focal point for international investment and geopolitical competition. Gulf states, in particular, have played a growing role in the region, offering financial support, infrastructure development, and diplomatic engagement. While such involvement is sometimes viewed with caution, it also presents opportunities for economic growth and modernization. Investments in ports, transportation networks, and energy systems have the potential to transform the region’s economic landscape in ways that earlier initiatives like the Sana’a Forum were unable to achieve.

In this evolving context, the transition from the Sana’a Forum to newer forms of regional engagement can be understood as a shift from bureaucratic idealism to functional pragmatism. The earlier model relied heavily on formal structures and broad declarations of intent, but it lacked the inclusivity and adaptability necessary for long-term success. The emerging model, by contrast, is characterized by more flexible arrangements, a focus on mutual interests, and a willingness to engage across traditional divides. It reflects an understanding that cooperation must be grounded in reality rather than aspiration alone.

This transformation also highlights the limitations of exclusionary approaches to regional politics. The experience of the Sana’a Forum demonstrates that attempts to isolate key actors are unlikely to produce lasting stability. Instead, such strategies tend to deepen divisions and create conditions for further conflict. By contrast, inclusive and pragmatic approaches offer a more viable path forward, even in the face of significant political differences. The gradual shift toward engagement between former adversaries suggests that the region is beginning to move in this direction.

At the same time, it is important to recognize that the new regional order remains a work in progress. The Horn of Africa continues to face significant challenges, including political instability, economic disparities, and unresolved conflicts. Progress toward integration will require sustained effort, careful diplomacy, and a willingness to navigate complex and often competing interests. However, the movement away from rigid alliances and toward more adaptive forms of cooperation represents a meaningful step forward.

Ultimately, the story of the Sana’a Forum is not simply one of failure, but of transition and transformation. Its rise reflected the aspirations of a region seeking stability and cooperation, while its collapse exposed the difficulties of achieving those goals within an exclusionary framework. In its place, a new and more dynamic regional landscape is emerging, one defined by shifting alliances, evolving priorities, and a growing emphasis on pragmatism.

Whether this new approach will succeed where the Sana’a Forum failed remains uncertain. What is clear, however, is that the region has moved beyond the assumptions that once defined its politics. The era of static rivalries and rigid blocs is giving way to a more fluid and interconnected system in which cooperation is driven by necessity rather than ideology. In this sense, the decline of the Sana’a Forum can be seen not as an endpoint, but as the beginning of a new chapter in the history of the Horn of Africa one that holds the potential for greater stability, deeper integration, and a more inclusive vision of regional cooperation.