On September 21, 2021, Iran kicked off military drills near the Azerbaijani districts of Fizuli, Jebrayil and Zangilan, which Azerbaijan had de-occupied last year, during the Second Karabakh War with Armenia. The Iranian exercises marked the first time in history that Tehran carried out war games along the shared border with Azerbaijan, which is over 700 kilometers long. Yet most of the resulting uproar among Azerbaijanis stemmed from the fact that the Iranian exercises specifically took place near the 130-kilometer-long segment of the border that Azerbaijan has recently restored control over.
War Games Shine Light on Deep-Running Iran-Azerbaijan Tensions – Jamestown
