WThis is a list of wars involving the Republic of Azerbaijan, its predecessor states, and by Azerbaijanis.
WThe Armenian–Azerbaijani War, which started after the Russian Revolution, was a series of conflicts in 1918, then from 1920 to 1922, that occurred during the brief independence of Armenia and Azerbaijan, and afterwards. Most of the conflicts did not have a principal pattern with a standard armed structure. The Ottoman Empire and British Empire were involved in different capacities: the Ottoman Empire left the region after the Armistice of Mudros but British influence continued until Dunsterforce was pulled back in the 1920s. The conflicts involved civilians in the disputed districts of Kazakh-Shamshadin, Zanghezur, Nakhchivan and Karabakh. The use of guerrilla and semi-guerrilla operations was the main reason for the high civilian casualties, which occurred during the nation-building activities of the newly established states.
WThe Iran crisis of 1946, also known as the Azerbaijan Crisis in the Iranian sources, was one of the first crises of the Cold War, sparked by the refusal of Joseph Stalin's Soviet Union to relinquish occupied Iranian territory, despite repeated assurances. The end of World War II should have resulted in the end of the Allied joint occupation of Iran. Instead, Pro-Soviet Iranians proclaimed the separatist Azerbaijan People's Government and the Kurdish separatist Republic of Mahabad. The United States pressure on the Soviet Union to withdraw is the earliest evidence of success with the new strategy of Truman Doctrine and containment.
WThe Iraq War was a protracted armed conflict that began in 2003 with the invasion of Iraq by a United States-led coalition that overthrew the government of Saddam Hussein. The conflict continued for much of the next decade as an insurgency emerged to oppose the occupying forces and the post-invasion Iraqi government. An estimated 151,000 to 1,033,000 Iraqis were killed in the first three to four years of conflict. US troops were officially withdrawn in 2011. However, following the spread of the Syrian Civil War and the territorial gains of the Islamic State of Iraq and the Levant (ISIL), the Obama administration decided to redeploy US forces to Iraq in 2014. Many former soldiers are employed by defense contractors and private military companies. The U.S. became re-involved in 2014 at the head of a new coalition; the insurgency and many dimensions of the civil armed conflict continue. The invasion occurred as part of the George W. Bush administration's War on Terror, following the September 11 attacks.
WThe Nagorno-Karabakh conflict is an ethnic and territorial conflict between Armenia and Azerbaijan over the disputed region of Nagorno-Karabakh, inhabited mostly by ethnic Armenians, and seven surrounding districts, inhabited mostly by Azerbaijanis until their expulsion during the Nagorno-Karabakh War, which are de facto controlled by the self-declared Republic of Artsakh, but are internationally recognized as de jure part of Azerbaijan. The conflict has its origins in the early 20th century, though the present conflict began in 1988, when the Karabakh Armenians demanded that Karabakh be transferred from Soviet Azerbaijan to Soviet Armenia. The conflict escalated into a full-scale war in the early 1990s.
WThe Nagorno-Karabakh War, referred to in Armenia as the Artsakh Liberation War, was an ethnic and territorial conflict that took place in the late 1980s to May 1994, in the enclave of Nagorno-Karabakh in southwestern Azerbaijan, between the majority ethnic Armenians of Nagorno-Karabakh backed by Armenia, and the Republic of Azerbaijan. As the war progressed, Armenia and Azerbaijan, both former Soviet Republics, entangled themselves in protracted, undeclared mountain warfare in the mountainous heights of Karabakh as Azerbaijan attempted to curb the secessionist movement in Nagorno-Karabakh. The enclave's parliament had voted in favor of uniting itself with Armenia and a referendum, boycotted by the Azerbaijani population of Nagorno-Karabakh, was held, whereby most of the voters voted in favor of independence. The demand to unify with Armenia began in a relatively peaceful manner in 1988; in the following months, as the Soviet Union disintegrated, it gradually grew into an increasingly violent conflict between Armenians and Azerbaijanis, resulting in ethnic cleansing, with Sumgait pogrom (1988), Baku pogrom (1990) and Khojaly Massacre (1992) being notable examples. Inter-ethnic clashes between the two broke out shortly after the parliament of the Nagorno-Karabakh Autonomous Oblast (NKAO) in Azerbaijan voted to unify the region with Armenia on 20 February 1988. The declaration of secession from Azerbaijan was the final result of a territorial conflict regarding the land. As Azerbaijan declared its independence from the Soviet Union and removed the powers held by the enclave's government, the Armenian majority voted to secede from Azerbaijan and in the process proclaimed the unrecognized Republic of Nagorno-Karabakh.
WThe Red Army invasion of Armenia, also known as the Russian-Armenian war or Sovietization or Soviet invasion of Armenia, Soviet occupation of Armenia, was a military campaign carried out by the 11th Army of Soviet Russia from September to 29 November 1920 to install a new Soviet government in the First Republic of Armenia, a former territory of the Russian and Ottoman Empires. The invasion coincided with the anti-government insurrection staged by the local Armenian Bolsheviks in the capital, Yerevan, and other cities and populated place over the country. The invasion led to the dissolution of the First Republic of Armenia and the establishment of the Armenian Soviet Socialist Republic.
WWorld War I was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Contemporaneously known as the Great War or "the war to end all wars", it led to the mobilisation of more than 70 million military personnel, including 60 million Europeans, making it one of the largest wars in history. It is also one of the deadliest conflicts in history, with an estimated nine million combatant deaths and 13 million civilian deaths as a direct result of the war, while resulting genocides and the related 1918 Spanish flu pandemic caused another 17–100 million deaths worldwide, including an estimated 2.64 million Spanish flu deaths in Europe and as many as 675,000 Spanish flu deaths in the United States.