A non-binding defense declaration linking Albania, Croatia, and Kosovo has provoked outsized reactions in the Western Balkans not because it alters the regional balance of power, but because it exposes a deeper shift in how European security now advances: through functional integration, industrial entanglement, and interoperability rather than formal alliances. In treating Kosovo as a normal security actor without waiting for political resolution, the pact reduces strategic ambiguity, redraws informal security boundaries, and reveals why resistance to such arrangements increasingly reflects a loss of leverage rather than a credible threat perception.
by Drizan Shala | 11 January 2026
When Albania, Croatia, and Kosovo signed a joint declaration on defense cooperation in Tirana in March 2025, the document attracted disproportionate political attention relative to its formal weight. It established no alliance, imposed no mutual defense obligations, and carefully disclaimed any legal force. Yet the reaction it provoked—particularly from Serbia—suggests that something more than routine military cooperation was at stake.
The significance of the agreement lies not in what it formally creates, but in what it institutionalizes informally. It is a case study in how European security is increasingly organized not through treaties and alliances, but through functional integration, capability alignment, and networked deterrence—especially in regions where formal institutional pathways remain politically blocked.
From Alliance Politics to Capability Networks
Classical alliance theory, rooted in balance-of-power logic, assumes that states respond to threats by forming binding coalitions. But the post–Cold War European security environment increasingly contradicts this model. NATO remains central, yet its political expansion is constrained, its strategic bandwidth finite, and its consensus mechanisms ill-suited to managing every regional contingency.
The Albania–Croatia–Kosovo declaration reflects an alternative logic: security through capability convergence rather than treaty obligation. Instead of pledging defense, the signatories coordinate procurement, training, industrial production, and resilience against hybrid threats. These are the operational foundations of deterrence, minus the escalatory symbolism of alliances.
This model aligns with what institutional theorists describe as integration by practice—the gradual harmonization of standards, procedures, and expectations that produces security outcomes without formal membership or legal codification.
Kosovo and the Logic of Functional Integration
Kosovo occupies a structurally anomalous position in European security. It cooperates extensively with NATO forces, adopts NATO standards, and participates in multinational exercises, yet remains excluded from NATO’s formal architecture due to unresolved status disputes. This exclusion has long been treated as a political problem requiring a political solution.
The Tirana declaration reframes the issue as a technical and institutional one.
By embedding Kosovo in joint training regimes, procurement planning, and defense-industrial cooperation with two NATO members, the agreement advances what might be called de facto integration without de jure recognition. Over time, such integration produces institutional facts: interoperable forces, shared supply chains, professional norms, and sunk investments.
From an institutionalist perspective, this reduces the relevance of formal status by increasing the cost of exclusion. Once interoperability is achieved, its reversal becomes politically and operationally irrational.
Defense Industry as Strategic Commitment
The agreement’s emphasis on defense-industrial cooperation is particularly revealing. Joint production initiatives—such as the co-development of armored vehicles—signal a shift from episodic cooperation to structural interdependence.
Defense industry collaboration creates what economists would describe as asset specificity: investments tailored to a particular partnership that cannot be easily redeployed. In security terms, this functions as a commitment mechanism. States that share production lines and procurement strategies are less likely to disengage, not because of legal obligation, but because disengagement is costly.
This is deterrence through institutional entanglement, rather than force posture.
Serbia’s Reaction and the Politics of Ambiguity
Serbia’s strong rhetorical response to the declaration—casting it as a provocation or an arms race—cannot be explained by material threat assessment. The agreement alters no regional balance of power and introduces no offensive capabilities.
Its impact is instead discursive and structural.
For years, Serbia’s strategy toward Kosovo has relied on preserving ambiguity: ambiguity over Kosovo’s permanence, over its security trajectory, and over the limits of its integration. That ambiguity has functioned as leverage. The Albania–Croatia–Kosovo pact erodes it by normalizing Kosovo’s participation in regional security cooperation without requiring recognition, consent, or mediation.
From a realist perspective, this represents a loss of influence without a compensating gain—a strategic outcome that predictably generates alarm.
Croatia, Albania, and the Security Community Logic
The role of Croatia and Albania also merits theoretical attention. Their participation is not simply an act of solidarity, but an extension of a security community logic, in Karl Deutsch’s sense: a group of states among whom war is no longer a conceivable policy option.
By treating Kosovo as a legitimate defense partner, Zagreb and Tirana expand the boundaries of that community. This move is less about confronting Serbia than about refusing to allow unresolved political disputes to define security cooperation.
In doing so, they reinforce a norm increasingly visible across Europe: that alignment, not recognition, determines participation in security networks.
Stability Through Predictability
Critics argue that such arrangements risk destabilization by bypassing diplomatic processes. The historical record suggests the opposite. In the Western Balkans, instability has thrived on uncertainty—over intentions, alignments, and red lines. The Tirana declaration reduces uncertainty by making cooperation transparent, routine, and rule-bound.
Security community theory predicts precisely this outcome: as expectations of peaceful interaction deepen, the incentive for coercive strategies diminishes. What replaces them is not harmony, but predictability.
A Template for Europe’s Margins
The broader significance of the Albania–Croatia–Kosovo pact lies in its potential replicability. It offers a template for regions where formal integration is politically constrained but security cooperation is strategically necessary.
Rather than waiting for institutional consensus, states can pursue incremental convergence, producing security as an emergent property of practice rather than proclamation.
In that sense, the agreement is less a Balkan anomaly than a microcosm of Europe’s evolving defense order—one in which alliances remain vital, but no longer exclusive, and where integration increasingly proceeds without ceremony.
About the author:
Drizan Shala is a Kosovo-based security expert and political analyst specializing in national security, defense policy, hybrid threats, and regional geopolitics in the Western Balkans. He is a PhD candidate in Security Studies (Homeland Security) at the University of Sarajevo’s Faculty of Criminalistics, Criminology, and Security Studies. Shala serves as Executive Director of the Association of Criminal Law, Criminologists, and Victimologists of Kosovo and as Director of the Kosovo branch of the SIRAS Academy. His work focuses on security normalization, deterrence dynamics, and the integration of Western Balkan states into Euro-Atlantic security frameworks. He regularly contributes analysis to regional and international media and has published on NATO intelligence doctrine and contemporary defense cooperation models.
