Azerbaijan Soviet Socialist Republic in the context of "Armenian Soviet Socialist Republic"

The post-Soviet states, also referred to as the former Soviet Union or the former Soviet republics, are the independent sovereign states that emerged/re-emerged from the dissolution of the Soviet Union in 1991. Prior to their independence, they existed as Union Republics, which were the top-level constituents of the Soviet Union. There are 15 post-Soviet states in total: Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. Each of these countries succeeded their respective Union Republics: the Armenian SSR, the Azerbaijan SSR, the Byelorussian SSR, the Estonian SSR, the Georgian SSR, the Kazakh SSR, the Kirghiz SSR, the Latvian SSR, the Lithuanian SSR, the Moldavian SSR, the Russian SFSR, the Tajik SSR, the Turkmen SSR, the Ukrainian SSR, and the Uzbek SSR. In Russia, the term "near abroad" (Russian: ближнее зарубежье, romanized: bližneye zarubežye) is sometimes used to refer to the post-Soviet states other than Russia.

Following the transition period and cessation of the existence of the Soviet Union, post-Soviet states and the international community de facto and de jure recognized Russia as the only continuator state to the Soviet Union as a whole, rather than to just the Russian SFSR including UN and UNSC membership (see agreements in Succession, continuity and legacy of the Soviet Union). The other post-Soviet states were recognized as successors only to their corresponding Union Republics and to international treaties concluded by the Soviet Union. All 12 post-Soviet states are successors of the Soviet Union, but not continuators.

The Transcaucasian Socialist Federative Soviet Republic (Transcaucasian SFSR or TSFSR), also known as the Transcaucasian Soviet Federative Socialist Republic, or simply Transcaucasia, was a republic of the Soviet Union that existed from 1922 to 1936.

The TSFSR comprised Armenia, Azerbaijan, and Georgia, traditionally known as the "Transcaucasian Republics" as they were separated from Russia by the Caucasus Mountains. It was created in March 1922 to unify the region following a Soviet invasion two years prior, and was one of the four republics to sign the Treaty on the Creation of the Union of Soviet Socialist Republics establishing the Soviet Union in December 1922. The TSFSR was dissolved upon the adoption of the 1936 Soviet Constitution and its constituent republics were elevated individually to republics of the Soviet Union.

Case Blue (German: Fall Blau) was the Wehrmacht's plan for the 1942 strategic summer offensive in southern Russia between 28 June and 24 November 1942, during World War II. The objective was to capture the oil fields of Baku (Azerbaijan SSR), Grozny and Maikop for two purposes: to enable the Germans to re-supply their low fuel stock and also to deny their use to the Soviet Union, thereby bringing about the complete collapse of the Soviet war effort.

After Operation Barbarossa failed to destroy the Soviet Union as a political and military threat the previous year, Adolf Hitler, the Führer of Nazi Germany, recognized that Germany was now locked in a war of attrition, and he was also aware that Germany was running low on fuel supply and would not be able to continue attacking deeper into enemy territory without more stock. With this in mind, Hitler ordered for the preparation of offensive plans for summer 1942 to secure the Soviet oil fields in the Caucasus. The operation involved a two-pronged attack: one from the Axis right flank against the oil fields of Baku, known as Operation Edelweiss, and one from the left flank to protect the first attack, moving in the direction of Stalingrad along the Don River, known as Operation Fischreiher.

The Georgian Soviet Socialist Republic, also known as Soviet Georgia, the Georgian SSR, or simply Georgia, was one of the republics of the Soviet Union from its second occupation (by the Red Army) in 1921 to its independence in 1991. Coterminous with the present-day republic of Georgia as well as the contested regions of Abkhazia and South Ossetia, it was based on the traditional territory of Georgia, which had existed as a series of independent states in the Caucasus prior to the first occupation of annexation in the course of the 19th century. The Georgian SSR was formed in 1921 and subsequently incorporated in the Soviet Union in 1922. Until 1936 it was a part of the Transcaucasian Socialist Federative Soviet Republic, which existed as a union republic within the USSR. From November 18, 1989, the Georgian SSR declared its sovereignty over Soviet laws. The republic was renamed the Republic of Georgia on November 14, 1990, and subsequently became independent before the dissolution of the Soviet Union on April 9, 1991, whereupon each former SSR became a sovereign state.

Geographically, the Georgian SSR was bordered by Turkey to the south-west and the Black Sea to the west. Within the Soviet Union it bordered the Russian SFSR to the north, the Armenian SSR to the south and the Azerbaijan SSR to the south-east.

Artsakh (/ˈɑːrtsɑːx, -sæx/ ART-sa(h)kh), officially the Republic of Artsakh or the Republic of Nagorno-Karabakh (/nəˌɡɔːrnoʊ kərəˈbɑːk/ nə-GOR-noh kər-ə-BAHK), was a breakaway state in the South Caucasus whose territory was internationally recognised as part of Azerbaijan. Between 1991 and 2023, Artsakh controlled parts of the former Nagorno-Karabakh Autonomous Oblast of the Azerbaijani Soviet Socialist Republic, including its capital Stepanakert. It had been an enclave within Azerbaijan from the 2020 Nagorno-Karabakh war until the 2023 Azerbaijani offensive, when the Azerbaijani military took control over the remaining territory controlled by Artsakh. Its only overland access route to Armenia after the 2020 war was via the five-kilometre-wide (3.1 mi) Lachin corridor, which was placed under the supervision of Russian peacekeeping forces.

The predominantly Armenian-populated region of Nagorno-Karabakh was claimed by both the Azerbaijan Democratic Republic and the First Republic of Armenia when both countries became independent in 1918 after the fall of the Russian Empire. A brief war over the region broke out in 1920. The dispute was largely shelved after the Soviet Union established control over the area, and created the Nagorno-Karabakh Autonomous Oblast (NKAO) within the Azerbaijan SSR in 1923; however, throughout the Soviet period, Armenians in the Nagorno-Karabakh Autonomous Oblast were heavily discriminated against. The Soviet Azerbaijani authorities worked to suppress Armenian culture and identity in Nagorno-Karabakh, pressured Armenians to leave the region and encouraged Azerbaijanis to settle within it, although Armenians remained the majority population.

The Treaty of Kars was a treaty that established the borders between Turkey and the three Transcaucasian Soviet republics, which are now the independent republics of Armenia, Georgia and Azerbaijan. The treaty was signed in the city of Kars on 13 October 1921.

Signatories of the Treaty of Kars included representatives from the Grand National Assembly of Turkey, which would declare the Republic of Turkey in 1923, and from the Armenian, Azerbaijani and Georgian Socialist Soviet Republics with the participation of the Russian Soviet Federative Socialist Republic. The last four parties would become constituent parts of the Soviet Union after the victory of the Bolsheviks in the Russian Civil War and the December 1922 Union Treaty.