Karluks in the context of "Mongol conquest of the Qara Khitai"

The Kara-Khanid Khanate (Persian: قراخانیان, romanized: Qarākhāniyān; Chinese: 喀喇汗國; pinyin: Kālā Hánguó), also known as the Karakhanids, Qarakhanids, Ilek Khanids or the Afrasiabids (Persian: آل افراسیاب, romanized: Āl-i Afrāsiyāb, lit. 'House of Afrasiab'), was a Karluk Turkic khanate that ruled Central Asia from the 9th to the early 13th century. The dynastic names of Karakhanids and Ilek Khanids refer to royal titles with Kara Khagan being the most important Turkic title up until the end of the dynasty.

The Khanate conquered Transoxiana in Central Asia and ruled it independently between 999 and 1089. Their arrival in Transoxiana signaled a definitive shift from Iranic to Turkic predominance in Central Asia, yet the Kara-khanids gradually assimilated the Perso-Arab Muslim culture, while retaining some of their native Turkic culture. The Khanate split into the Eastern and Western Khanates in the 1040s. In the late 11th century, they came under the suzerainty of the Seljuk Empire followed by the Qara Khitai (Western Liao dynasty) who defeated the Seljuks in the Battle of Qatwan in 1141. The Eastern Khanate ended in 1211, and the Western Khanate was extinguished by the Khwarazmian Empire in 1212.

Mongol campaigns in Central Asia occurred after the unification of the Mongol and Turkic tribes on the Mongolian Plateau in 1206. Smaller military operations of the Mongol Empire in Central Asia included the destruction of surviving Merkit and Naimans (which involved forays into Cumania) and the conquest of Qara Khitai. These were followed by a major campaign against Khwarazm. Expansion into Central Asia began in 1209 as Genghis Khan sent an expedition to pursue rivals who had fled to the region and threatened his new empire. The Uyghur kingdom Qocho and leaders of the Karluks submitted voluntarily to the Mongol Empire and married into the imperial family. By 1218 the Mongols controlled all of Xinjiang and by 1221 all the territories of the former Khwarazmian Empire. In 1236, the Mongols defeated the eastern portions of Cumania and swept into Eastern Europe.

The Toquz Oghuz ("Nine Clans") was a political alliance of nine Turkic Tiele tribes in Inner Asia, during the early Middle Ages. The Toquz Oghuz was consolidated and subordinated within the First Turkic Khaganate (552–603) and remained as a nine-tribe alliance after the khaganate fragmented.

Oghuz is a Turkic word meaning "community" and toquz means "nine". Similarly the Karluks were possibly known as the Üç-Oğuz – üç meaning "three". The root of the generalized ethnic term "oghuz" is og-, meaning "clan, tribe"; which in turn, according to Kononov, descends from the ancient Turkic word ög meaning "mother" (however, Golden considered such a further derivation impossible). Initially the oguz designated "tribes" or "tribal union", and eventually became an ethnonym.

The Karluk or Qarluq languages are a sub-branch of the Turkic language family that developed from the varieties spoken by Karluks. By far the largest languages of this branch are Uzbek and Uyghur.

Many Middle Turkic works were written in these languages. The language of the Kara-Khanid Khanate was known as Turki, Ferghani, Kashgari or Khaqani. The language of the Chagatai Khanate was the Chagatai language.

Uzbeks are a small community in Pakistan. They were one of the first Karluk tribes to arrive in the modern-day region of Pakistan; they ruled the area of Pakhli (modern-day Hazara) for over 200 years from 1472 to 1703. Uzbeks form a significant minority group in the regions of Khyber Pakhtunkhwa and FATA.

There are many Uzbek immigrants in Pakistan from Central Asian countries, mainly Afghanistan and Uzbekistan. Around 2.3% of the Afghans residing in Pakistan are ethnic Uzbeks. The Afghan War drove them to Pakistan. In 1981, many Afghan Uzbek refugees in Pakistan moved to Turkey to join the existing communities based in Kayseri, İzmir, Ankara and Zeytinburnu. The Uzbeks can be found mainly in north-west Pakistan, comprising the areas of Khyber Pakhtunkhwa (in particular Peshawar), Gilgit-Baltistan and Balochistan. Additionally, Uzbek militants allied to al-Qaeda from the Islamic Movement of Uzbekistan and Islamic Jihad Union are believed to reside in the Federally Administered Tribal Areas. Their number at their height was predicted to be anywhere from 500 to 5,000. Now, only a few hundred foreign militants of various nationalities are thought to remain in Pakistan – the majority either having been killed by the Pakistani military's Zarb-e-Azb operation launched in 2014 or shifting to other theaters of jihadist conflicts, such as Syria.