Answer:
Can u pls make it clear I don't understand
After the Soviets successfully detonated an atomic bomb in 1949, President Harry S. Truman ordered the creation of a hydrogen bomb project. With the help of the Polish mathematician Stanislaw Ulam, Dr. Teller developed a model for the hydrogen bomb known as the Teller-Ulam design
President Harry Truman. Western European countries(NATO).
Answer: A. Americans were being held hostage by terrorists in Iran.
Answer
Guerra Fria
Explanation:
Nesse periodo EUA e URSS não teve um conflito direto.Apenas teve competições como quem iria primeiro para a lua(corrida aeroespacial).