The [[Manhattan Project]] was a top-secret research and development undertaking by the [[United States]] with the support of the [[United Kingdom]] and [[Canada]] during World War II. Its primary objective was to produce the first nuclear weapons. [[J. Robert Oppenheimer]] was the scientific director of the project, and [[John von Neumann]] was also a key figure.[^1] ### Footnotes [^1]: Hersh, Seymour M. *The Samson Option: Israel's Nuclear Arsenal and American Foreign Policy*. Random House, 1991. Chapter 2.