In the United States, Admiral William Benson attempted to entirely dissolve the USN's program in 1919. Assistant Secretary of the Navy Franklin Roosevelt and others succeeded in maintaining it, but the service continued to support battleship-based doctrines. To counter Billy Mitchell's campaign to establish a separate Department of Aeronautics, Secretary of the Navy Josephus Daniels ordered a rigged test against in 1920 which reached the conclusion that "the entire experiment pointed to the improbability of a modern battleship being either destroyed or completely put out of action by aerial bombs." Investigation by the "New-York Tribune" that discovered the rigging led to Congressional resolutions compelling more honest studies. The sinking of involved violating the Navy's rules of engagement but completely vindicated Mitchell to the public. Some men, such as Captain (soon Rear Admiral) William A. Moffett, saw the publicity stunt as a means to increase funding and support for the Navy's aircraft carrier projects. Moffett was sure that he had to move decisively in order to avoid having his fleet air arm fall into the hands of a proposed combined Land/Sea Air Force which took care of "all" the United States's airpower needs. (That very fate had befallen the two air services of the United Kingdom in 1918: the Royal Flying Corps had been combined with the Royal Naval Air Service to become the Royal Air Force, a condition which would remain until 1937.) Moffett supervised the development of naval air tactics throughout the '20s. The first aircraft carrier entered the U.S. fleet with the conversion of the collier USS "Jupiter" and its recommissioning as in 1922.