Oleg would be born on January 16, 1948 in the village of Kadgaron, part of the North Ossetian Autonomous Soviet Socialist Republic.

Oleg would frequently change schools due to his father's military service, ultimately graduating from gymnasium in Vladikavkaz, afterwards he studied at the North Caucasus Mining and Metallurgical Institute to become an electrical engineer.

Teziev organized every district of Tskhinvali to raise its own company of militia complete with a command structure, and personally outfitted them out of his own pocket.

Teziev's militias eventually usurped power from the Georgian Police, with the locals coming to them to settle legal disputes and apprehend criminals.

During his effort to procure weapons Teziev worked with the North Ossetian Mafia, but broke off relations after they attempted to kill him.

[1] During the Russo-Georgian War Teziev once again served as a commander and claimed to have witnessed Georgian troops throwing grenades into basements full of civilians.

I would like with all my heart to wish for the unification to happen as quickly as possible"After leaving office, Teziev served as chairman of Civic Initiative, a Vladikavkaz-based support group for South Ossetian refugees into North Ossetia.

However, then-incumbent president Lyudvig Chibirov passed a law requiring all candidates to live in South Ossetia for 15 years, barring Teziev from running.