The Red Army invasion of Georgia (15 February 17 March 1921), also known as the SovietGeorgian War or the Soviet invasion of Georgia, was a military campaign by the Russian Red Army aimed at overthrowing the Social-Democratic (Menshevik) government of the Democratic Republic of Georgia (DRG) and installing a Bolshevik regime in the country. The conflict was a result of expansionist policy by the Russians, who aimed to control as much as possible of the lands which had been part of the former Russian Empire until the turbulent events of the First World War, as well as the revolutionary efforts of mostly Russian-based Georgian Bolsheviks, who did not have sufficient support in their native country to seize power without external intervention.The independence of Georgia had been recognized by Russia in the Treaty of Moscow, signed on 7 May 1920, and the subsequent invasion of the country was not universally agreed upon in Moscow. It was largely engineered by two influential Georgian-born Soviet/Russian officials, Joseph Stalin and Sergo Ordzhonikidze, who on 14 February 1921 got the consent of Russian leader Vladimir Lenin to advance into Georgia, on the pretext of supporting "peasants and workers rebellion" in the country. Russian forces took the Georgian capital Tbilisi (then known as Tiflis to most non-Georgian speakers) after heavy fighting and declared the Georgian Soviet Socialist Republic on 25 February 1921. The rest of the country was overrun within three weeks, but it was not until September 1924 that Soviet rule was firmly established. Almost simultaneous occupation of a large portion of southwest Georgia by Turkey (FebruaryMarch 1921) threatened to develop into a crisis between Moscow and Ankara, and led to significant territorial concessions by the Soviets to the Turkish National Government in the Treaty of Kars.

Tbilisi (English: tə-bil-EE-see, tə-BIL-iss-ee; Georgian: თბილისი [tʰbi'lisi] (listen)), in some languages still known by its pre-1936 name Tiflis ( TIF-liss), is the capital and the largest city of Georgia, lying on the banks of the Kura River with a population of approximately 1.5 million people. Tbilisi was founded in the 5th century AD by Vakhtang I of Iberia, and since then has served as the capital of various Georgian kingdoms and republics. Between 1801 and 1917, then part of the Russian Empire, Tiflis was the seat of the Caucasus Viceroyalty, governing both the northern and the southern parts of the Caucasus.

Because of its location on the crossroads between Europe and Asia, and its proximity to the lucrative Silk Road, throughout history Tbilisi was a point of contention among various global powers. The city's location to this day ensures its position as an important transit route for energy and trade projects. Tbilisi's history is reflected in its architecture, which is a mix of medieval, neoclassical, Beaux Arts, Art Nouveau, Stalinist and the Modern structures.

Historically, Tbilisi has been home to people of multiple cultural, ethnic, and religious backgrounds, though it is overwhelmingly Eastern Orthodox Christian. Its notable tourist destinations include cathedrals Sameba and Sioni, Freedom Square, Rustaveli Avenue and Agmashenebeli Avenue, medieval Narikala Fortress, the pseudo-Moorish Opera Theater, and the Georgian National Museum. The climate in Tbilisi mostly ranges from 20 to 32 °C (68 to 90 °F) in the summer and −1 to 7 °C (30 to 45 °F) in the winter.