A neutron bomb is actually a small thermonuclear bomb in which a few kilograms of plutonium or uranium, ignited by a conventional explosive, would serve as a fission “trigger” to ignite a fusion explosion in a capsule containing several grams of deuterium-tritium.

Does the US have a neutron bomb?

Although the United States has manufactured and stockpiled neutron bombs, in order to mollify public opposition in Europe it announced in 1981 that these weapons would not be deployed overseas at that time.

Are neutron bombs possible?

Although no country is currently known to deploy them in an offensive manner, all thermonuclear dial-a-yield warheads that have about 10 kiloton and lower as one dial option, with a considerable fraction of that yield derived from fusion reactions, can be considered able to be neutron bombs in use, if not in name.