Which term best describes the relationship between the united states and the soviet union during the cold war?

collaborative
competitive
complacent
cooperative

The correct answer is competitive.  

The Cold War was a period of economic, political and military tension between the US and the USSR from 1945 to 1991. This period of tension was characterized by constant competition between these two superpowers for world dominance. During this period, for example, there was an arms race as both superpowers competed to have more and more lethal weapons than the other. There was also a space race, which referred to the rivalry between the US and the USSR in space programs. This rivalry was even evident in sport, especially in competitions such as the Olympics.