Tribalism in africa led to intense competition and warfare amongst tribes. Prisoners were sold into slavery in exchanged for manufactured goods, weapons, and rum. Which one of these goods was most valuable to tribes that looked to expand their power and influence in the region?.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

answer; primary source information;