What allowed the United States to develop atomic weapons? Research from the Manhattan Project The discovery of plutonium in the American Southwest Stolen German missile technology The construction of the Enola Gay (answers with links or downloads will be reported)

Research from the Manhattan Project

Explanation:

Manhattan Project was a research and development project carried out during the Second World War that produced the first nuclear weapons, led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946 the project was under the direction of Major General Leslie Groves of the Army Corps of Engineers of the United States, while the nuclear physicist Robert Oppenheimer was the director of the Los Alamos Laboratory in which the nuclear bombs were designed .

the exclusive possession or control of the supply or trade in a commodity or service.