Turkey-Iran rivalry in the changing geopolitics of the South Caucasus

Abstract

The South Caucasus has long been a theatre of Turkish and Iranian cooperation and rivalry. While these two regional powers have historically balanced their inter­ests, there are signs that rivalry is taking precedence. Turkey's unwavering backing of Azer­baijan during the 2020 Karabakh War consolidated Ankara's footprint in the region. Azerbaijan's retaking of the rest of Karabakh in the latest military strikes on 19 September 2023 makes a peace accord between Azerbaijan and Armenia more likely, furthering Turkey's interests, and potentially limiting Russia's role in the region. However, the prospect of a "less Russia, more Turkey" dynamic heightens Tehran's apprehensions towards Ankara. Particularly concerning for Iran is the clause with­in the Moscow-brokered ceasefire of November 2020 that mandates the rebuild­ing of a road and rail link connecting Turkey to mainland Azerbaijan via Azerbaijan's Nakhchivan exclave and Armenia's south-eastern Syunik province; this risks marginal­ising Iran. In addition, Tehran is anxiously observing the deepening of ties between Turkey’s close ally, Azerbaijan, and Iran's key adversary, Israel. (author's abstract)