Who was primarily responsible for the cold war- the united states or the soviets?

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.