How did the cold war contribute to economic growth in the us

Cold War never generated a direct armed conflict between the United States (US) and the Soviet Union (USSR), but the conflict of interest between the two countries resulted in armed conflicts around the world and a dispute that took place at various levels such as the economy, diplomacy, technology, etc.

The economy of the Soviet Union began to go into crisis. The crisis was the result of the lack of actions by the Soviet government to boost the country's economy, which was already showing a technological and economic backwardness in relation to the great world powers, and the country's social indicators began to fall.

The soaring oil price created a climate of false prosperity that prevented reforms in the Soviet economy from happening. And this made US become bigger.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.  

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )