There are people who call themselves Christians who believe that we should hang on to our nuclear WMD, Trident. They go all serious and sincere and explain very patiently, and yet forcibly that we have to have Trident, because otherwise we would all die in a nuclear war because Russia, China, France, Israel, and soon, Iran, or some evil regime would eventually bomb us unless we have Trident.
They believe that us having Trident somehow stop nuclear war from happening. They believe in deterrence.
Nuclear deterrence in physical terms means a web of minds of politicians, advisors, communicators, computers, sensors, technicians, engineers, military, and technology. The minds are professional, but inevitably some will be individually psychopathic, paranoid or unstable.
These "Christians" believe that this deterrence system is perfect. It will not break down. Or if it does break down, it is the Lord's will.
The fact is that nuclear deterrence is not infallible. It is fallible. It will break down. There is a 99.9 recurring percentage probability that it will break down at some future time.
When the nuclear deterrence system breaks down a lot of people will die. The lucky minority will be vaporised. The unlucky majority will die slowly, of burns, diarrhoea, vomiting dehydration, infection, starvation, leukaemia and cancer.
Christians who hold that Trident is regrettably necessary are responsible for these deaths.
They are making a massive miscalculation by believing that deterrence is infallible.
Their choice entails massive suffering.
They stand outside of the main stream of Christianity, because of the teaching of their founder.
Therefore "Christians" who support Trident are no better than The Islamic State terrorists.