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Abstract

Russia’s traditional dominance over Central Asia’s security architecture had remained unchallenged for many years after the Central Asian states were formed as separate nations. However, the post-2021 period has witnessed a noticeable shift in regional dynamics, where China’s expansion beyond economic spheres into direct security sector engagement appears to be reshaping the balance of influence. China’s involvement in the security sector is seen in three different dimensions, military infrastructure development, defense technology transfers, and bilateral security partnerships. This raises an important puzzle, i.e. in what ways is China’s deliberate security sector involvement reshaping Russia’s historically unchallenged position in Central Asia, and what mechanisms facilitate this competitive encroachment? The paper explores how China’s transition from an economic investor to an active security stakeholder is competing with Russian primacy, and whether this transition generates structural incentives for Central Asian states to diversify their security partnerships. Drawing on regional hegemony theory and strategic hedging frameworks, this analysis argues that China’s security sector expansion operates as a parallel architecture that subtly challenges rather than directly confronts Russian dominance, creating asymmetrical competition dynamics. The examination considers how bilateral defense agreements and participation within the Shanghai Cooperation Organization, along with military training programs, enable Beijing to position itself as an alternative security guarantor. Through qualitative analysis of secondary sources such as policy documents, bilateral agreements, and scholarly assessments, the paper traces the patterns and scope of Chinese security engagements across Tajikistan, Kazakhstan, and Kyrgyzstan between 2021 and 2025. The findings suggest that China’s security expansion is not uniformly threatening to Russian interests at present, but rather creates differentiated vulnerabilities for Central Asian states based on their geostrategic position and economic capacity. Which means that weaker, border-vulnerable states like Tajikistan and Kyrgyzstan face greater pressure to accept Chinese security partnerships, while resource-rich Kazakhstan maintains more autonomy in choosing its security partners. Ultimately, the paper contributes to understanding how multipolarity emerges within traditional hierarchical regional orders through competitive institutional and bilateral mechanisms rather than through confrontation.