Answer :
He did not do use American troops to support the revolt and NATO did not intervene when USSR crushed the revolution. One problem was the Britain and France were fighting Egypt over the Suez at this time and we backed them.
The Eisenhower's administration decided to not intervene in the Hungary rebellion. Eisenhower made a mistake by failing to even attempt to airlift supplies to the embattled Freedom Fighters. The Soviets killed some forty thousand Hungarian “freedom fighters” before installing a more compliant leader in Hungary. They then hauled Nagy off to Moscow, where a firing squad executed him in 1958. It was a tragic ending to an independence movement that pleaded for the United States to back up its promise of “liberation” with force.