Scientist. Known as the "Father of the Hydrogen Bomb," he was born in Budapest, Hungary, where his views of the world were shaped by two major events, which were the Communist Revolution and the rise of Nazism. He received his university education in Germany, obtaining a PhD in Physics at the University of Leipzig. When Nazism came to power in Germany, he emigrated with his wife, Mici, to the United States, where he became a professor of Physics at George Washington University. He became a United States Citizen in 1941, and a year later, joined the Manhattan Project to develop the first atomic bomb. There he developed the principle of hydrogen fusion and promoted that concept to develop a hydrogen bomb, which he called the "Super Bomb." The first H-Bomb was exploded in 1952. His most lasting contribution to atomic research was the creation of the Lawrence Livermore Laboratory in 1952, for which he argued that one lab (then only Los Alamos National Labs) could not check on itself and that competition would enable the quality of the work to improve. During the Cold War, his influence was greatly felt by presidents of both parties, and he supported development of nuclear bombs, atomic energy and the Strategic Defense Initiative. In 1939, he was one of three scientists who alerted United States President Franklin D. Roosevelt to the power of nuclear fission, which led to the Manhattan Project to develop the atomic bomb. After the war, when asked if he regretted the atomic bombing of Japan, he stated "I deeply regret the deaths and injuries that resulted from the atomic bombings, but my best explanation of why I do not regret working on the weapons is a question: 'What if we hadn't?' Even the end of the Cold War did not change his views that the United States needed a strong defense, saying "The danger for ballistic missiles in the hands of 18 different nations has increased. If we want to have stable, peaceful conditions, defense against sudden attack by rockets is needed more than ever."