Promoting Stability or Instability? Arms Transfers and Regional Rivalries,1950-1991

Abstract

There has not been much formal or empirical research on the impact of Cold War–era arms transfers on regional subsystems, and the work that has been undertaken is inconclusive: arms transfers appear, in some cases, to promote stability, but in other situations they are shown to be destabilizing. This study confronts the issue directly by developing and testing both stability and instability models of Superpower (U.S. and USSR) and third-country arms transfers. The models examine the effects of exported arms on the political and military relationships between three sets of rival importers—India-Pakistan, Iran-Iraq, and Ethiopia-Somalia—during the 1950–1991 period. Tests of the models with recently released arms trade data reveal that the weapons shipments of the U.S. and USSR were profoundly destabilizing, while those of third parties generally had little impact on subsystem political and military relationships. An intriguing exception to these patterns is the weapons transfers of the PRC, specifically to Pakistan: these are found to have lessened the military imbalance between Pakistan and India, suggesting that the PRC's reputation as an irresponsible exporter deserves further review.

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