Visit Olive-Drab.com's sister site for
over 7,500 free military vehicle photos!
Nuclear weapons have changed war and defense more than any other weapon ever developed. The immense firepower of nuclear weapons, packed into small delivery packages, is an unprecedented change in the scale of destructiveness available for military use. Since the 1940s, all national security calculations must consider whether the adversary possesses or can obtain nuclear capability.
Atomic theory, based on Einstein's 1905 work on relativity and further developed by many other physicists, hinted that a nuclear energy bomb was possible. As World War II loomed in Europe and Asia, on 2 August 1939, Albert Einstein wrote to Pres. Roosevelt about the potential for a uniquely powerful uranium weapon and indications of German interest in it, the inspiration for the Manhattan Project. Still, nothing was done until 1942 when fear of nuclear development by Nazi Germany motivated action in the United States and England.
In June 1942, the U.S. War Department launched the top secret Manhattan Project to turn theory into actual weapons.
The nuclear weapons age began in 1945 with a successful atomic bomb test at the Trinity site in New Mexico, followed by U.S. use of two atomic bombs against Japanese cities, first Hiroshima then Nagasaki. These Olive-Drab.com pages present the history of nuclear weapons development and some information on the atomic and hydrogen bomb weapons fielded by the United States.
Find More Information on the Internet
There are many fine websites that have additional information on this topic, too many to list here and too many to keep up with as they come and go. Use this Google web search form to get an up to date report of what's out there.
For good results, try entering this: weapons nuclear or atomic. Then click the Search button.
Especially recommended: Atomic Archive.