intentionally launch nuclear weapons against it.
All the facilities used by the US to prepare the materials for nuclear weapons, build nuclear weapons, design and test new nuclear weapons. This is all lead by the Department Of Energy.
Nuclear weapons in the US are all refurbished at PANTEX just east of Amarillo, TX. No new nuclear weapons are built at this time by the US.
Nuclear arms race.
US weren't effected by the Nuclear Weapons, They created it.
Mutually assured destruction, called for short (and sensibly so): the M.A.D. Principle.
The US has imposed trade restrictions against Iran in hope of pressuring their government to abandon its attempts to build nuclear weapons.
no, but they did help the US work on the Manhattan Project, so they had the classified data on how to build them.
the u.s. used non nuclear weapons and nuclear weapons against japan
The US no longer makes nuclear weapons, it only refurbishes existing ones that are wearing out.
The US has refrained from using nuclear weapons due to the catastrophic human and environmental consequences associated with their use. Additionally, the world community, including the US, has generally upheld international agreements and norms that seek to prevent the use of nuclear weapons.
All of them have nuclear weapons cause they are the United States.