Flag of the Republic of Artsakh

On 2 June 1992, the Nagorno-Karabakh Republic (NKR), a former breakaway state in the South Caucasus region, adopted a flag derived from the flag of Armenia, to which a white, five-toothed, stepped carpet pattern is added, beginning at the two verges of the flag's fly and meeting at a point equal to one-third of the distance from that side. The NKR was renamed the Republic of Artsakh in 2017 after a referendum and retained the flag.

Source: Wikipedia — Flag of the Republic of Artsakh (CC BY-SA 4.0)