Azerbaijani military operation, 19–20 September 2023

Twenty-four-hour Azerbaijani military offensive against the residual Armenian-controlled portion of Nagorno-Karabakh, 19–20 September 2023. The unprepared Karabakh defence forces capitulated within a day. The operation triggered the immediate displacement of effectively the entire Armenian population, over 100,000 people, within the next ten days.