Which problem threatened the peace in postwar europe? a many countries claiming control over the same lands (imperialism) b the principle of collective security c germany's insistence on taking over part of austria?

After the success of the sputnik launch, the united states feared that they would never be able to launch their own satellite, the ussr had used technology developed by the united states, the soviets had superior nuclear capabilities, that any future us satellites would not be as successful.