In 1948, Radford was appointed by President Harry S. Truman as the Vice Chief of Naval Operations (VCNO). Debates continued with military leaders about the future of the armed forces as Truman sought to trim the defense budget. Radford was relied on by Navy leaders as an expert who would fiercely defend the Navy's interests from budget restrictions, but his appointment as VCNO was opposed by Fleet Admiral Chester Nimitz, who feared his hard-line stance on the budget would alienate the generals in the other branches of the military. Some historians contend Radford brought strong leadership to the role. Naval aviation assets grew from 2,467 aircraft to 3,467 during this time, almost all aircraft for fast-attack carriers. He also oversaw the implementation of the "Full Air Program" which envisioned 14,500 total aircraft in the naval air force. Along with his predecessor John Dale Price, he favored reducing naval ship strength in order to develop stronger naval aviation capabilities. Then, in 1949, Truman appointed him as the High Commissioner of the Trust Territory of the Pacific Islands.