Nuclear weapons are the deadliest weapons in the world, and most make the most attention from around the world.
A nuclear weapon is a weapon that gets power from nuclear reactions and has a powerful destructive power - a nuclear bomb capable of destroying a city. Nuclear weapons have been used only twice in battle - during World War II by the United States against Japanese cities, Hiroshima and Nagasaki. From that incident the world war II began to subside until finally peaceful.
The confirmed nuclear weapons states are the United States, Russia, Britain (Britain), France, the People's Republic of China, India, North Korea and Pakistan. In addition, the state of Israel is believed to have nuclear weapons, although not tested and Israel is reluctant to confirm whether it has nuclear weapons or not.
In World War II erupted a plan to make uranium bombs by Allied nations began in 1939 when Albert Einstein wrote a letter to US President Franklin D. Roosevelt and conveyed the theory that uncontrolled nuclear chain reactions have great potential to become mass murder weapons .
In 1940, the US government approved a fund of 6,000 dollars to finance the manufacture of the atomic bomb. The project, called the Manhattan project, finally came to fruition five years later with a swollen fund of up to two million dollars. The next question is to whom will the bomb be dropped? Target is Germany. However, because Germany had surrendered in World War II, in August 1945 Japan became the victim of the first-generation atomic bomb attack. By dropping the atomic bomb by the United States then the world war ll began to subside until finally peace.
