Whole cities wiped off the map, millions killed within minutes, complete devastation – and all because some deranged world leader with a chip on his shoulder has pressed a button.
After the Cold War ended in 1989 the risk of this happening seemed unlikely but now with Russian president Vladimir Putin making all kinds of scary threats as he pushes ahead with his invasion of Ukraine, he’s got the whole world feeling decidedly jumpy.
And Putin, who has access to a huge nuclear arsenal, seems to be going out of his way to stoke these feelings of paranoia, warning that any country which intervenes to stop the invasion will suffer consequences “such as you have never seen in your entire history”.