nagorno-karabakh is a disputed region in the south caucasus. legally, it is recognized as part of azerbaijan, but from 1994 until the 2020 nagorno-karabakh war, most of it was militarily controlled by armenians as the republic of artsakh, which is not officially recognized by any other country, including armenia which supports it. currently, different parts of the region are controlled by both azerbaijan and armenia, with azerbaijan controlling most of it and armenia controlling a smaller central area.