competition between the united states and soviet union. during cold war. more weapons is more power other countries developed bombs word war 2 manhattan project created first nuclear weapon. soviet union was not informed until postdam conference on July 24, 1945. americans distrusted soviets. klaus fuchspgerman scientist/ atomic spy at los alamos national laborator gave nuclear info to USSR after 22II when preisent turman to ld stalin about bomb. blasts made big clouds and there was a lot of dagree and damage. soviets began working on weapons too. americans preidcted USSR's weapons would not be read untin mind 50's first soviet bomb dropped August 29. known as joe one. both began work on hydrogen bombs. smaller in size but 2500 times more powerful. ICBMs intercontinental ballistic missles or rockets most important development in terms of elivery. missles were thought to be more effective then strategic bombers also cheaper faster and more difficult to destroy. us emplyed german scientists who had developed the V2 rocket in WWII. Biggest problem was accuracy. further distances traveled less accuracey us needed missiles to travel long distances ICBMs were lighter and smaller. the minuteman -- atlas took over an hour to prepare. bye end of 1950's minuteman was produced sotred own fuel. on cotober 4 1957 the USSR launched their first missile satellite called the sputnick showed they had missles able to reach any part of the world. when USSR launched sputnik america bulild DEW line around the arctic defense and early warning system if russia attacked with missles, 20 million americans would die. there were enough bombs to destroy would by 1961. polaris us delveloped polaris submarines. could carry nuclear missiles subs could move closer to USSR accuracy increased could carry 16 nuclear missiles. once polaris sub carried more popwer then bombs during WWII. if an attack from an aggressor nation world occur the attacked country would massivle retaliate by using force greater than the size of the attack. buba was on the edge of using there nuclear weapons if anyone were attack.
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