evidence: More importantly, however, Turkey gained a land corridor to Azerbaijan’s exclave of Nakhchivan. The stipulation in the document reads: "Armenia guarantees the security of transport links … for unimpeded movement of citizens, vehicles, and cargo in both directions" between mainland Azerbaijan and the exclave of Nakhchivan, which are separated by Armenian territory. Moreover, "Transport control is exercised by the Border Service of the Federal Security Service of Russia. By agreement of the parties, the construction of new transport communications connecting the Nakhchivan Autonomous Republic and Azerbaijan’s western regions will be provided." [...] What bothers Iran is a potentially major shift in the region’s transportation routes. For decades Azerbaijan has been dependent on Iran for transiting energy and other supplies to Nakhchivan. The new Karabakh deal could change it. Armenia will now guarantee the opening up of a corridor through its territory to allow Azerbaijan to transport goods directly to Nakhichevan. Quite naturally, this limits Tehran’s leverage over Baku. [...] Abandoning this transit corridor would undermine the efficacy of the South Caucasus transportation and energy corridor. This makes the extent of the Nakhchevan corridor quite limited. Perhaps, what the region is likely to see is the growing interconnectedness of the exclave with the Turkish territory. The emergence of a major corridor through the Nakhchivan is likely to happen if, at minimum, a meaningful improvement of Turkey-Armenia relations takes place.