Eurasian nomads in the context of "Great Wall"

The Bulgars (also Bulghars, Bulgari, Bolgars, Bolghars, Bolgari, Proto-Bulgarians) were Turkic semi-nomadic warrior tribes that flourished in the Pontic–Caspian steppe and the Volga region between the 5th and 7th centuries. They became known as nomadic equestrians in the Volga-Ural region, but some researchers trace Bulgar ethnic roots to Central Asia.

During their westward migration across the Eurasian Steppe, the Bulgar tribes absorbed other tribal groups and cultural influences in a process of ethnogenesis, including Iranic, Uralic, and Hunnic tribes. The Bulgars spoke a Turkic language, the Bulgar language of the Oghuric branch. They preserved the military titles, organization, and customs of Eurasian steppes as well as pagan shamanism and belief in the sky deity Tangra.

The Scythians (/ˈsɪθiən/ or /ˈsɪðiən/) or Scyths (/ˈsɪθs/), also known as the Pontic Scythians, were an ancient Eastern Iranic equestrian nomadic people who migrated during the 9th to 8th centuries BC from Central Asia to the Pontic Steppe in modern-day Ukraine and Southern Russia, where they remained until the 3rd century BC.

Skilled in mounted warfare, the Scythians displaced the Agathyrsi and the Cimmerians as the dominant power on the western Eurasian Steppe in the 8th century BC. In the 7th century BC, the Scythians crossed the Caucasus Mountains and often raided West Asia along with the Cimmerians.

The Sarmatians (/sɑːrˈmeɪʃiənz/; Ancient Greek: Σαρμάται, romanized: Sarmátai; Latin: Sarmatae [ˈsarmatae̯]) were a large confederation of ancient Iranian equestrian nomadic peoples who dominated the Pontic steppe from about the 5th century BC to the 4th century AD.

The earliest known reference to the Sarmatians occurs in the Avesta, where they appear as Sairima-, which in later Iranian sources becomes Sarm and Salm. Originating in the central parts of the Eurasian Steppe, the Sarmatians formed part of the wider Scythian cultures. They started migrating westward around the fourth and third centuries BC, coming to dominate the closely related Scythians by 200 BC. At their greatest reported extent, around 100 BC, these tribes ranged from the Vistula River to the mouth of the Danube and eastward to the Volga, bordering the shores of the Black and Caspian seas and the Caucasus to the south.

The Alans (Latin: Alani) were an ancient and medieval Iranic nomadic pastoral people who migrated to what is today North Caucasus; some continued on to Europe and later North Africa. They are generally regarded as part of the Sarmatians, and possibly related to the Massagetae. Modern historians have connected the Alans with the Central Asian Yancai of Chinese sources and with the Aorsi of Roman sources. Having migrated westwards and becoming dominant among the Sarmatians on the Pontic–Caspian steppe, the Alans are mentioned by Roman sources in the 1st century CE. At that time they had settled the region north of the Black Sea and frequently raided the Parthian Empire and the South Caucasus provinces of the Roman Empire. From 215 to 250 CE the Goths broke their power on the Pontic Steppe, thereby assimilating a sizeable portion of the associated Alans.

Upon the Hunnic defeat of the Goths on the Pontic Steppe around 375 CE, many of the Alans migrated westwards along with various Germanic tribes. They crossed the Rhine in 406 along with the Vandals and Suebi, settling in Orléans and Valence. Around 409 they joined the Vandals and Suebi in crossing the Pyrenees into the Iberian Peninsula, settling in Lusitania and Hispania Carthaginensis. The Iberian Alans, soundly defeated by the Visigoths in 418, subsequently surrendered their authority to the Hasdingi Vandals. In 428 CE, the Vandals and Alans crossed the Strait of Gibraltar into North Africa, where they founded a kingdom which lasted until its conquest by forces of the Byzantine Emperor Justinian I in 534.

The Pannonian Avars (/ˈævɑːrz/ AV-arz) were an alliance of several groups of Eurasian nomads of various origins. The peoples were also known as the Obri (modern Russian: обры, Obry) in the chronicles of the Rus, the Abaroi or Varchonitai (Greek: Βαρχονῖται, romanized: Varchonitai), or Pseudo-Avars in Byzantine sources, and the Apar (Old Turkic: 𐰯𐰺) to the Göktürks. They established the Avar Khaganate, which spanned the Pannonian Basin and considerable areas of Central and Eastern Europe from the late-6th to the early-9th centuries.

The name "Pannonian Avars" (after Pannonia in the upper Danube basin where they eventually settled) is used to distinguish them from the Avars of the Caucasus, a separate people with whom the Pannonian Avars may or may not have had links. Although the name Avar first appeared in the mid-5th century, the Pannonian Avars entered the historical scene in the mid-6th century, on the Pontic–Caspian steppe as a people who wished to escape the rule of the Göktürks. They are probably best known for their invasions and destruction in the Avar–Byzantine wars from 568 to 626 and for their influence on the Slavic migrations to the Balkans.

The Onoghurs, Onoğurs, or Oğurs (Ὀνόγουροι, Οὔρωγοι, Οὔγωροι; Onογurs, Ογurs; "ten tribes", "tribes") were a group of Turkic nomadic equestrians who flourished in the Pontic–Caspian steppe and the Volga region between the 5th and 7th centuries, and spoke an Oghuric language.

Nomadic empires, sometimes also called steppe empires, Central or Inner Asian empires, were the empires erected by the bow-wielding, horse-riding, nomadic people in the Eurasian Steppe, from classical antiquity (Scythia) to the early modern era (Dzungars). They are the most prominent example of non-sedentary polities.

Some nomadic empires consolidated by establishing a capital city inside a conquered sedentary state and then exploiting the existing bureaucrats and commercial resources of that non-nomadic society. In such a scenario, the originally nomadic dynasty may become culturally assimilated to the culture of the occupied nation before it is ultimately overthrown. Ibn Khaldun (1332–1406) described a similar cycle on a smaller scale in 1377 in his Asabiyyah theory.