[2] Harb tribal lands extend from the Red Sea coast in Tihamah (Western Part of Saudi Arabia) to the heart of Najd in the central region of Saudi Arabia, and from North the Harbi lands extend from Madinah (a holy city for Muslims) to Al Qunfudhah in the south.
When Qahtani tribes emigrated from the south of Arabian Peninsula to Hejaz around 131 AH for water and land space after some battles with their cousins Banu Ar-Rabi'ah bin Saad, this caused several tribal conflicts with the native and mostly Adnani Arab tribes of Hejaz and Tihamah such as Juhaynah, Anazzah, Muzaynah, and Sulaym over land and water.
Many tribal members have migrated in recent decades to the three major metropolitan centers of Saudi Arabia: Riyadh, Jeddah, Al-Qassim and Dammam.
Throughout Lebanese history, the Harb tribe played a significant role in local politics, military affairs, and regional defense.
The tribe has produced many notable figures in Lebanese politics, business, and culture, with several influential individuals holding leadership positions in municipal and regional governance.
The tribe is known for its strong kinship ties and social cohesion, which have contributed to its longevity and influence in Lebanon.