Overview of Nagorno-Karabakh.  While claimed and internationally recognized as Azerbaijani land, the Nagorno-Karabakh Oblast was under the Soviet system an autonomous, ethnically Armenian enclave inside Azerbaijan.  After the fall of the USSR a 3-year war erupted between Armenia and Azerbaijan over the land after the inhabitants of the NK Oblast declared independence from Azerbaijan, and Armenia signed a 1994 ceasefire having gained military control of both the former NK Oblast and the provinces to the south and west.  These consolidated regions are now ruled by an independent government called the Nagorno-Karabakh Republic, but are still occupied by the Armenian military. One area called Shahumian in the north that declared independence alongside the NK Oblast, and is still claimed by the NGR, remains under Azerbaijani control.
File is a simple translation with expanded explanatory text of :Image:Az-qa-location-fr.svg
Bourrichon, translation by Lesqual