Multiple choice In 1955 the Soviets responded to the creation of NATO by Strengthening its control over the states of the Western Bloc building the Berlin Wall detonating their first atomic bomb Strengthening control over the Eastern Bloc & forming the Warsaw Pact Reveal answer Fill a bubble to check yourself D Correct answer Explanation In response to the formation of NATO, the Soviet Union and its satellite states in Eastern Europe formed the Warsaw Pact in 1955 to solidify their military alliance and control.