The Tyous (written in Arabic as التيوس pronounced Tyoos) were quietly formed at the early 1970s in Beirut by one Al Anid, a Christian Maronite rightwing activist who strongly opposed the 1969 Cairo Agreement and the presence of Palestine Liberation Organization (PLO) guerrilla factions in Lebanon.

Personally commanded by Al-Anid, the Tyous was technically answerable to the Phalange KRF War Council, but reported directly to Bashir Gemayel instead.

[citation needed] However, the Tyous' HQ was placed under the direct orders of Elie Hobeika, and remained so until himself was ousted from the LF command by Samir Geagea in January 1985.

This fact was attested in July – August 1976, when the Phalangists, the Army of Free Lebanon and other Lebanese Front militias overrun after a long siege the Muslim-populated slum districts and adjacent Palestinian refugee camps located at East Beirut – Karantina, al-Maslakh and Tel al-Zaatar – the Tyous joined in the respective massacres and expulsion of the remaining Palestinian refugees and Muslims.

Engaged for the most part in static operations at Beirut's Green Line, the Tyous bore the brunt of the LNM-PLO alliance 'Spring offensive' held at March that year.

The next time he was engaged in battle after leaving the LF was when Syrian, Amal Movement and Hobeika's LFEC troops were attacking the defenseless Achrafieh in 1986.

Some unconfirmed reports suggest that former Tyous' members might have joined Hobeika at Zahlé, playing a role in the formation of its dissident Lebanese Forces – Executive Command (LFEC) militia the following year.