That includes its very strong and organized military and its centralized political structure.
Ok during this time, they were fighting for land, so they wanted: guns, gunpowder, knives, lead for musket balls, rum, cloth, etc they didn't want to lose these things it changed their life and they then depended on it.
The name of the river that marked the northern boundary of Islamic expansion in central Asia is Oxus. In 651, Arabs took Iran. After this, they went towards the Oxus river in the north with the intention of defeating the Turkish. The Arabs succeeded and the expansion setling Oxus river as the northern boundary was finally consolidated in 750 C.E.
I think the anwser is scare tactics to enforce Jim Crow laws
