The Baltic and the Balkans – two distinct, yet connected points of the European security architecture

Written for Kosovo Online by Zeljko Sajn

The Baltic region represents one of the most sensitive, yet at the same time one of the most stable, points of the contemporary European security architecture. Within a relatively small but strategically highly significant area, NATO and Russia directly face one another—two actors whose open conflict would carry potentially global consequences. Precisely for that reason, the Baltic functions as a zone of high tension and firmly structured deterrence.
Following the end of the Cold War, Europe did not construct an inclusive security framework that would have incorporated Russia as an equal actor. NATO remained the central pillar of Western security, while Russia remained permanently outside that system. In Moscow, this period is interpreted through the narrative of “missed opportunities”—from the Soviet request to join NATO in 1954 to discussions in the late 1990s, which were seen as an unused opportunity for a shared security architecture.
The Baltic states—Estonia, Latvia, and Lithuania—have become a symbol of that historical divergence. From a Western perspective, their NATO membership represents the realization of the sovereign right of small states to choose collective security arrangements. From the Russian perspective, the Baltic signifies the expansion of Western military infrastructure toward Russian borders and the narrowing of Russia’s strategic depth.
Despite sharp rhetoric, an armed conflict in the Baltic remains unlikely. The key reason lies in the clearly defined structure of deterrence: any serious escalation would automatically trigger Article 5 of the North Atlantic Treaty and lead to a direct confrontation between major powers. Unlike Ukraine, the Baltic is not a “gray zone,” but a precisely defined security line.
The stability of this space is further confirmed by the measurable balance of forces. Within NATO’s “Enhanced Forward Presence” program, approximately 4,000 to 5,000 troops are deployed in the Baltic states, primarily serving a political and deterrent role. By contrast, Russia maintains between 25,000 and 30,000 troops in the Kaliningrad region and the Western Military District, along with deployed Iskander-M missile systems, S-400 air defense systems, and significant air and naval capabilities. This configuration has established a stable A2/AD (anti-access/area denial) belt of access control and force projection. In such a setting, the Baltic functions as a space of balanced risk: sensitive enough to require constant attention, yet sufficiently institutionally protected to deter open conflict.
However, the European security map does not end in the Baltic. A second line of tension extends southeast—through the Balkans, where the interests of major powers do not collide directly but intersect through the region’s political, security, and identity framework.
Unlike the Baltic space, where NATO and Russia directly confront each other through clearly defined military capabilities and collective defense obligations, the Balkans represent a more complex and politically fluid security zone. Here, rivalry does not take the form of symmetrical military confrontation, but manifests through diplomatic influence, energy flows, historical legacy, and unresolved status issues.
A particularly significant place within this structure is occupied by Kosovo and Metohija. While the Baltic is institutionally integrated into NATO and the European Union, Kosovo remains a space of unfinished international consensus. The presence of KFOR provides a basic security framework, yet political issues remain open, rendering the region susceptible to periodic low-intensity crises. For Moscow, the Kosovo question represents an important diplomatic argument in its broader relationship with the West; for NATO and the European Union, the Balkans remain part of a strategy of stabilization and prevention of a security vacuum.
Compared to the Baltic, the distinction between two European frontiers becomes evident. The Baltic frontier is hard, militarized, and precisely defined institutionally. The Balkan frontier is softer, politically more complex, and reliant on international missions and fragile internal balances. While in the north the line of demarcation is clear and deterrence structured, in the southeast stability depends on crisis management and the capacity of local actors to avoid escalation.
In this context, one must also consider the cautious diplomatic signals emerging from security forums, including the Munich Security Conference, where fatigue with prolonged confrontation has become increasingly visible. The talks held in Anchorage in 2025, although technical in nature, unfolded within a political environment shaped by the President of the Russian Federation, Vladimir Putin, and the President of the United States, Donald Trump. Even in their absence, signals indicating a readiness for more direct communication contributed to the restoration of minimal channels for managing rivalry.
The Baltic and the Balkans thus represent two distinct, yet interconnected, points of the European security architecture. One functions through clearly defined deterrence and institutional firmness; the other through political complexity and a constant need for diplomatic balancing. The future of both spaces will depend less on spectacular political gestures and more on the capacity of major powers to preserve clear rules of engagement, prevent incidents, and maintain predictability in their mutual relations.
In that sense, the Baltic is more likely to remain a frontier of control, and the Balkans a space of managed instability, rather than becoming a new European battlefield.