With the help of Leo Szilard, Einstein convinced President Roosevelt that Germany may be using uranium and fission research to create a new type of super bomb. His arguments are best seen in the introduction of this section. Einstein helped the United States to begin the same type of research of uranium and fission that was occurring in Germany. It was not until the day after the Pearl Harbor attack, December 6, 1941, that substantial funds were allocated to the research. These funds allowed Enrico Fermi to achieve the first controllable chain reaction [Kraus, 1996]. Einstein was never officially part of the Manhattan Project, but he was one of the scientists responsible for getting it started (and later for protesting the use of the bombs).