 This committee had been specifically created by the Joint Chiefs of Staff to study the effects of a massive nuclear strike against the Soviet Union.Nevertheless, within weeks, an ad hoc Joint Chiefs committee recommended tripling America's nuclear arsenal, and Chief of Staff Vandenberg called for enough bombs to attack 220 targets, up from the previous 70.Upon receiving his fourth star in 1951 at age 44, LeMay became the youngest American four-star general since Ulysses S. Grant.