Jefferson davis was an american soldier and politician. he is best known for serving as the

Jefferson Davis was an American soldier and politician, but is best known for being the only president of the Confederate States of America. Educated as a soldier at the U.S. Milit...view moreJefferson Davis was an American soldier and politician, but is best known for being the only president of the Confederate States of America.

Explanation:

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

fertile good for trade etc