Britain and russia managed to peacefully share control of persia by
a. letting persia decide how to divide its assets.
b. setting up a joint committee to oversee resources.
c. agreeing to share all duties of a protectorate.
d. each taking charge of their own part of persia.

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

responsibilities im assuming