In response to the formation of NATO, the Soviet Union: A. created the Warsaw Pact.

B. ended the Berlin Airlift.

C. joined the Marshal Plan.

D. joined HUAC.

E. invaded Hungary.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.