で、1992年から1994年にかけて紛争になり、戦争に勝った Armenia（アルメニア）が Nagorno-Karabakh（ナゴルノカラバフ）の統治を獲得するのですが、その後も両国のあいだで軍事攻撃が続いていきます。
Note in English
Azerbaijan and Armenia have fought over Nagorno-Karabakh for a long time.
The international community has recognized the area, called Nagorno-Karabakh, as a part of Azerbaijan although a lot of Armenians live in the area.
Both Azerbaijan and Armenia had coexisted under the Soviet Union, but in 1991 when the Soviet Union collapsed, Armenians in Nagorno-Karabakh demanded to become a part of Armenia. This led to the war between Azerbaijan and Armenia until 1994 when Armenia won the control over the area.
Since Nagorno-Karabakh is still officially a part of Azerbaijan, however, this was not the end of the conflict, and military actions by both countries continued.
Due to the continuous conflict between the two countries, Russia led them to make peace agreement to end the military actions in the area in 2020. Since then, Russia has stayed in Nagorno-Karabakh as a peacekeeper, but military actions by both countries has still been seen in the area.
Nagorno-Karabakh is rich in oil and natural gas, and Azerbaijan has relied on the exports of oil and natural gas to Turkey, the neighboring country. In addition to trade, Azerbaijan and Turkey use the same language and has maintained good relationships, and thus Turkey has backed Azerbaijan over the Nagorno-Karabakh conflict.