Abstract

Since 2016, Central Asia has experienced an unprecedented intensification of regional interaction. Informal consultative summits of Central Asian leaders, dense bilateral agreements, particularly between Kazakhstan and Uzbekistan, and the expansion of sectoral cooperation in transport, trade, and security have generated renewed debates about regional integration. Simultaneously, the region remains deeply embedded in overlapping external frameworks, including the Shanghai Cooperation Organization, the Eurasian Economic Union, and various “C5+1” formats. This paper examines how internal coordination and external tracks interact to shape the nonlinear dynamics of regional integration in Central Asia.

Drawing on semi-structured expert interviews, qualitative document analysis, and event-based process tracing of key summits and agreements after 2016, the study applies insights from complex systems theory and competing regionalism scholarship. Rather than conceptualizing integration as a linear accumulation of institutions, the paper treats Central Asia as an adaptive regional system structured by feedback loops, threshold effects, and path dependencies.

The central argument is that bilateral “axis partnerships,” especially between Kazakhstan and Uzbekistan, function as stabilizing cores that generate emergent regional effects beyond formal institutionalization. Internal coordination mechanisms, such as leader-driven consultative summits, create a platform for agenda harmonization, while external tracks provide resources, strategic leverage, and infrastructural connectivity. However, these external frameworks also introduce institutional overlap and strategic competition, producing nonlinear outcomes: periods of acceleration, temporary fragmentation, and adaptive rebalancing.

The findings suggest that competing regionalisms do not necessarily undermine regional cohesion. Instead, they produce a dynamic balancing structure in which internal coordination mitigates fragmentation risks while preserving strategic autonomy. The paper introduces the concept of “nonlinear regional coordination” to explain how Central Asia’s integration trajectory differs from classical models of regional institutional deepening.

By reframing Central Asian regionalism through a nonlinear systems perspective, this study contributes to broader debates on post-Soviet transformation, adaptive regionalism, and the interaction between small-region agency and great-power institutional architectures.