During the cold war era, the united states became involved in an international organization. it stated that if one member of this organization was attacked by another nation, the remaining members would come to that member's defense. this organization is called

d.

thist title points out that you are explaining the nature of the u.s. government. it is the most specific. a representative government consists of a government where decisions are taken according to a voting system. the most essential aspect of a representative government is found in the different structures where voting rights are granted to different groups of people. for example, voting for governor, mayor, president, local police chief etc.