First Nagorno-Karabakh War
In this way, contrary to the rejection by the Azerbaijan SSR and the Soviet Union, the Armenian SSR started to establish their own political structures in Nagorno-Karabakh. On 9 January 1990, the Armenian parliament decided to control the region under its budget system, which angered Azerbaijanis and both sides fought each other in the villages in Khanlar and Shaumian regions; consequently, four Russian soldiers dispatched by Soviet Union died.