Atomic energy is “the energy that is released through a nuclear reaction or radioactive decay process” (usnrc). Jordan Termine stated: "According to Einstein's research, in 1939, he concluded the possibility of triggering a nuclear chain reaction in a large mass of uranium, from which large quantities of energy would be generated" (finding Dulcinea). Contributors to the development of nuclear weapons: Albert Einstein, who first explored nuclear fission and its potential use as a weapon. Another key player in this field was General Leslie Groves, who conducted the first nuclear test in New Mexico under a project called the "Secretary of War Memorandum." J. Robert Oppenheimer, also known as the father of the atomic bomb, “was appointed scientific director of the Manhattan Project. Oppenheimer nicknamed the first denotation the “Trinity Test” (finding dulcinea). Atomic weapons were developed by the United States during World War II because during the early years of the war the German forces showed the world the strength of their military weapons. “President Franklin Roosevelt realized that to win the war the United States would have to develop its own modern weapons. For this reason he established a National Defense Research Committee to further develop Einstein's research with the goal of building the atomic bomb before the Germans do” (many things). To close a dramatic chapter of brutal fighting during World War II, the United States used the atomic bomb on August 6, 1945, bombing Hiroshima, Japan. The second bombing occurred “three days later, when the United States dropped another atomic bomb on the city of Nagasaki, Japan” (Teachinghistory). In 1939, Albert Einstein “concluded his research… mid-paper… … late 1972)” (lanl.gov). Nuclear energy is one of the most important energy sources in the world. The discovery of nuclear energy is an important invention for humanity due to its many peaceful uses. “Today, 439 nuclear reactors produce approximately 16% of the world's electricity” (un.org). Nuclear energy is also considered useful in addressing the climate change challenges we are facing today, many other fields that have benefited from nuclear energy such as; “health care and nutrition, water management, food security, sustainable development and nuclear safety” (state.gov). The United States has adopted many programs for the peaceful use of nuclear energy, including US-supported activities; Sterile Insect Technique (SIT), Program of Action for Cancer Therapy (PACT), Support for nuclear energy infrastructure.