Civilian casualties: Estimate up to 25,000 killed and up to 5,000 disappeared in Chechnya (AI estimate) Estimate total number of casualties: ~80,000 killed in Chechnya (GfbV estimate), More in neighbouring regions, 40-45,000 civilians killed (Kramer), More than 600 killed during attacks in Russia proper. Other estimates for civilian dead 150,000 to 250,000
Total killed military/civilian: ~50,000–80,000
The Committee of soldiers' mothers group disputed the official government count of the number of war dead and claimed that 14,000 Russian servicemen were killed during the war from 1999 to 2005.
Second Chechen War (Russian: Втора́я чече́нская война́), also known as the Second Chechen Сampaign (Russian: Втора́я чече́нская кампа́ния) or officially (from the Russian point of view) Counter-terrorist operations on territories of North Caucasian region (Russian: Контртеррористические операции на территории Северо-Кавказского региона), was an armed conflict on the territory of Chechnya and the border regions of the North Caucasus between the Russian Federation and the Chechen Republic of Ichkeria, also with militants of various Islamist groups, fought from August 1999 to April 2009.
On 9 August 1999, Islamist fighters from Chechnya infiltrated Russia's Dagestan region, declaring it an independent state and calling for a jihad until "all unbelievers had been driven out". On 1 October, Russian troops entered Chechnya. The campaign ended the de facto independence of the Chechen Republic of Ichkeria and restored Russian federal control over the territory.
During the initial campaign, Russian military and pro-Russian Chechen paramilitary forces faced Chechen separatists in open combat, and seized the Chechen capital Grozny after a winter siege that lasted from late 1999 until February 2000. Russia established direct rule of Chechnya in May 2000 and after the full-scale offensive, Chechen militant resistance throughout the North Caucasus region continued to inflict heavy Russian casualties and challenge Russian political control over Chechnya for several more years. Some Chechen separatists also carried out attacks against civilians in Russia. These attacks, as well as widespread human rights violations by Russian and separatist forces, drew international condemnation.
In mid-2000, the Russian government transferred certain military operations to pro-Russian Chechen forces. The military phase of operations was terminated in April 2002, and the coordination of the field operations were given first to the Federal Security Service and then to the MVD in the summer of 2003.
By 2009, Russia had severely disabled the Chechen separatist movement and large-scale fighting ceased. Russian army and interior ministry troops no longer occupied the streets. Grozny underwent reconstruction efforts and much of the city and surrounding areas were rebuilt quickly. Sporadic violence continues throughout the North Caucasus; occasional bombings and ambushes targeting federal troops and forces of the regional governments in the area still occur.
On 15 April 2009, the government operation in Chechnya was officially over. As the main bulk of the army was withdrawn, the burden of dealing with the low-level insurgency mainly fell on the shoulders of the local police force. Three months later the exiled leader of the separatist government, Akhmed Zakayev, called for a halt to armed resistance against the Chechen police force starting on 1 August and said he hoped that "starting with this day Chechens will never shoot at each other".
The exact death toll from this conflict is unknown. Russian casualties are around 7,500 (official Russian casualty figures) and are about 11,000 according to the Committee of Soldiers' Mothers. Unofficial sources estimate a range from 25,000 to 50,000 dead or missing, mostly civilians in Chechnya.
During the dissolution of the Soviet Union in 1991, Chechnya declared independence. In 1992, Chechen and Ingush leaders signed an agreement splitting the joint Chechen–Ingush republic in two, with Ingushetia joining the Russian Federation and Chechnya remaining independent. The debate over independence ultimately led to a small-scale civil war since 1992, in which the Russians supported the opposition forces against Dzhokhar Dudayev. Thousands of people of non-Chechen ethnicity (mostly Russians) fled the Chechen Republic, and Chechnya's industrial production began failing after Russian engineers and workers fled or were expelled. The First Chechen War began in 1994, when Russian forces entered Chechnya to "restore constitutional order". Following nearly two years of brutal fighting, in which an estimated tens of thousands to more than 100,000 people died, and the 1996 Khasavyurt ceasefire agreement, the Russian troops were withdrawn from the republic.