Which statement best describes the alliance systems in the years leading up to world war i? a) each country in europe was aware of the diplomatic agreements between the other countries. eliminate b) pre-war alliances were made in secret and elevated diplomatic tensions within those governments. c) international groups like the league of nations failed in their efforts to prevent military build-ups. d) the alliances were entered into mainly for economic reasons rather than for political or military ones.

the answer is either c or d i think its d

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.

portugal is the westernmost country in europe.