Armenia is a nation, and former Soviet republic, in the mountainous Caucasus region between Asia and Europe. Among the earliest Christian civilizations, it’s defined by religious sites including the Greco-Roman Temple of Garni and 4th-century Etchmiadzin Cathedral, headquarters of the Armenian Church. Khor Virap Monastery is a pilgrimage site near Mount Ararat, a dormant volcano just across the border in Turkey.

Armenia prides itself on being the first state to formally adopt Christianity (early 4th century). Armenia has existed as a political entity for centuries with varying geographical boundaries and differing levels of political independence, but for much of its history it was under the sway of various empires including the Roman, Byzantine, Arab, Persian, Ottoman, and Russian. During World War I, the Ottoman Empire instituted a policy of forced resettlement coupled with other harsh practices targeting its Armenian subjects, especially those living in the eastern provinces of Anatolia, that resulted in at least 1 million Armenian deaths; these actions have been widely recognized as constituting genocide. During the early 19^th century, significant Armenian populations fell under Russian rule as a result of Russian military successes against the Persian (1813) and Ottoman (1828) empires. After the Bolshevik Revolution toppled the last Russian tsar in 1917, Armenia declared its independence in 1918, but was conquered by the Soviet Red Army in 1920. Armenia, along with Azerbaijan and Georgia, was initially incorporated into the USSR as part of the Transcaucasian Federated Soviet Socialist Republic; in 1936, the federated republic was separated into its three constituent entities, which were maintained until the dissolution of the Soviet Union in 1991.

Armenia has a longstanding conflict with neighboring Azerbaijan about the status of the Nagorno-Karabakh region. The region historically had a mixed Armenian and Azerbaijani population, although ethnic Armenians have constituted the majority since the late 19^th century. In 1921, Moscow placed Nagorno-Karabakh within Soviet Azerbaijan as an autonomous oblast, a decision that Armenian political leaders and the public repeatedly sought to alter through petitions and complaints, starting in the 1930s. In the late Soviet period, a separatist movement developed that sought to end Azerbaijani control over the region. Fighting over Nagorno-Karabakh began in 1988 and escalated after Armenia and Azerbaijan attained independence from the Soviet Union in 1991. By the time a cease-fire took effect in May 1994, separatists, with Armenian support, controlled Nagorno‑Karabakh and seven surrounding Azerbaijani territories. constituting a total of 14 percent of Azerbaijan’s overall territory. Armenia and Azerbaijan engaged in a second military conflict over Nagorno-Karabakh in September-November 2020, as a result of which Armenia lost control over much of the territory it had captured a quarter-century earlier. Under the terms of a cease-fire agreement signed in November 2020, Armenia returned the territories around Nagorno-Karabakh and some parts of Nagorno-Karabakh to Azerbaijan and accepted the deployment of Russian peacekeepers to the remainder of the region. Armenia’s only remaining territorial connection to Nagorno-Karabakh after 2020 was through the five-kilometer wide Lacin Corridor, which passed through Azerbaijani-held territory and was under the control of Russian peacekeepers.

Turkey closed its common border with Armenia in 1993 in support of Azerbaijan during the first period of conflict with Armenia and has maintained a closed border since then, leaving Armenia with closed borders both in the west (with Turkey) and east (with Azerbaijan). Armenia and Turkey engaged in intensive diplomacy to normalize their relations and open the border in 2009, but the signed agreement was not ratified in either country and became a dead letter in 2018, when Armenia officially withdrew its signature. In 2015, Armenia joined the Eurasian Economic Union alongside Russia, Belarus, Kazakhstan, and Kyrgyzstan. In November 2017, Armenia signed a Comprehensive and Enhanced Partnership Agreement (CEPA) with the EU.