No, there is not imminent threat of Iran building this past summer, a National Intelligence Estimate on Iran's nuclear capabilities was released showing that Iran was 10 years away from building a nuclear weapon. This estimate represents a consensus among the U.S. intelligence agencies. Nuclear war or atomic war is war in which nuclear weapons are use.
Use of nuclear weapons in wartime.
plutonium + weapon
The answer is impossible: we can use uranium in weapons but we can also use uranium in another very useful applications; it is a choice: aggressive countries as United States, United Kingdom, Israel, Russia, etc. can use nuclear weapons as a threat against the other countries.
No. LLNL even tested several Uranium-Hydride bombs in the 1950s. Even though their computer models said the devices should explode, none gave a nuclear yield. One could use the waste from the reactor as a Radiological Weapon, but the reactor itself is not useful as a weapon.
One of the sources of the nuclear threat in the Russian Domain is the large nuclear arsenal maintained by Russia, including intercontinental ballistic missiles and other delivery systems. The potential for nuclear proliferation and the risk of accidents or unauthorized use also contribute to the nuclear threat in the region.
Truman in WW2 on Japan.
Harry Truman - August of 1945
The roman army did not use nuclear weapons.
nuclear bomb
US
For somehow, US invented this weapon and if Chinese dared to do this, the first country gonna attack back is US. They will be doomed if there is war between the Chinese ans US.
The only wartime use of a Nuclear weapon was the ending of World War II with the American Nuclear Strikes on Hiroshima and Nagasaki.