Why did Marib formed a fertile environment for al -Qaeda?

Activists today, Hashtaq #Marib_ and Al -Qaeda, inaugurated to highlight the activity of the terrorist organization in the province, which is the nucleus of the local organization in Yemen.
Activists said that Wadi Ubaidah in Marib represents a safe haven for al -Qaeda thanks to the relationship between the organization and some tribes, the absence of the central government’s control, and the collusion of the Reform Party that dominates the province.
They also highlighted the border outlets of Marib, which turned into active windows of the movements of the effects of antiquities, children, khat and brokers of trafficking with weapons and drugs, to the Houthi militia regions.
It is reported that Marib was classified as the largest city believed to represent a tribal incubator for al -Qaeda elements in Yemen.
Earlier, the Brotherhood Reform Party launched al -Qaeda elements who were detained in its prisons in Ma'rib, and among those who were launched the prominent leader of the assassinations, Amin Tawfiq Salam.