Which aspect of the korean war indicates that it was a part of the cold war as well as a civil war?

a. many of the troops who supported north korea were chinese, while many of the troops who fought for south korea were american.

b. the conflict resulted in huge numbers of deaths on both sides but did not produce any significant benefits for either side.

c. north korea initially launched its invasion of south korea to prevent it from acquiring nuclear weapons technology from the united states.

d. it was fought using modern technology such as nuclear missiles, rather than older world war ii technology.