The 2026 landscape, with huge technological advancements and political divisions, means the “four minute warning” Brits would have received during the Cold War is no longer a reality. As residents in Dubai seek shelter, and the Doomsday Clock edges closer to midnight, the Mirror takes a look at the sickening reality of how we would be warned
The chilling four-minute warning that would warn people of incoming missiles during the Cold War has been replaced by an app alert – with warnings that the survivors may truly “envy the dead.”
As the Doomsday Clock ticks closer to midnight than ever before, the reality of a nuclear strike on Britain has shifted from history books to a major concern as tensions continue to rise across the world.
But gone are the days of hand-cranked sirens. Today, your only warning of an catastrophic event will be a piercing, ten-second shriek from the Emergency Alert System on your phone.
But with hypersonic missiles reportedly capable of hitting the UK in 200 seconds, the idea of a four-minute warning seems drastically outdated. And it’s unlikely anyone would be happy to survive, with the Cold War warning that the “survivors would envy the dead” summing up the brutal reality that would exist after such a devastating incident.
As Dubai residents receive an alert on their phone warning people to seek immediate shelter, we’ve taken a look at the sickening reality of what happens when the digital siren finally sounds…
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The UK used to have many more nuclear bunkers than it currently does, with many decommissioned in 1992 when it seemed the Cold War was over – along with the four-minute alert warning that would once have prepared Brits that an attack was incoming.
Now, Brits would likely be warned that a nuclear strike was imminent by the Emergency Alerts System the government has put into place. The system went under its last major test in September 2025, which saw mobile phones and tablets across the country blare a loud, piercing siren for about ten seconds – even if they were on silent.
A text message also appears on the screen of the device when the EAS is being used, explaining what has going on. Other than nationwide tests, its been used more locally to warn residents in particular areas about emergencies near them: this has ranged from extreme weather, flood risks, and the discovery of an unexploded World War Two bomb, so far, but would definitely include a strike against the UK.
During the Cold War, a script was prepared and recorded that would have been aired over the radio to explain to Brits what was happening. According to the BBC, people across the UK would have heard the words: “This is the Wartime Broadcasting Service. This country has been attacked with nuclear weapons. Communications have been severely disrupted, and the number of casualties and the extent of the damage are not yet known.”
The BBC reports that according to declassified papers, the radio transmission would also have “urged people to stay calm, remain in their homes, save water and make the most of tinned food supplies. It was hoped this would provide reassurance as well as information.”
The terrifying message also said, “Remember there is nothing to be gained by trying to get away. By leaving your homes you could be exposing yourselves to greater danger. If you leave, you may find yourself without food, without water, without accommodation and without protection. Radioactive fall-out, which follows a nuclear explosion, is many times more dangerous if you are directly exposed to it in the open. Roofs and walls offer substantial protection. The safest place is indoors.”
Nuclear experts have said that these days due to upgraded systems, the UK might be lucky to get a few more minutes than the four Brits expected to receive as their only warning at the height of the Cold War – if the country to launch a nuclear attack at the UK was Russia.
From the moment a nuclear missile was launched in Russia, it could give us 15-20 minutes, estimates Professor Andrew Futter, who previously spoke to the Express about this matter. “It wouldn’t give us time to do anything,” Futter said. “Government officials might be OK, there is a bunker under Whitehall and some places VIPs can hide.”
The 15-20 minutes might also ensure the British government had time to send its own nuclear missiles back towards whoever attacked the UK.
However, some say that we wouldn’t get anywhere near this amount of time, and instead other reports have claimed that Russia in particular has missiles that could hit the UK in just 200 seconds – the RS-28 Sarmat hypersonic nuclear missile – nicknamed “Satan-2”, per the Independent.
It’s been advised previously that people have 10 minutes after a nuclear strike hits to get inside and away from fallout, per the the International Commission on Radiological Protection (ICRP), this would ideally be in a basement or the centre of a building.
“After a detonation, you will have 10 minutes or more to find an adequate shelter before fallout arrives. If a multi-story building or a basement can be safely reached within a few minutes of the explosion, go there immediately. The safest buildings have brick or concrete walls. Underground parking garages and subways can also provide good shelter.”
However, Professor Futter has said that even a London Underground station would be unlikely to be deep enough to protect Brits from a nuclear blast. However, it is important to remember that Mutually Assured Destruction is still a concept that is alive and well – if one nation state were to launch an attack, they would be under immediate threat from all the other nuclear powers – this still acts as a powerful deterrent against nuclear war.
The Doomsday Clock, run by the Bulletin of the Atomic Scientists’ Science and Security Board, is currently set to 85 seconds to midnight , which is chillingly the closest it has ever been to “catastrophe.”
Some places might be safer than others in the UK from a nuclear strike.
- Foula, Shetland
- Cornwall
- Weymouth
- Folkestone
- Dover
- Margate
- Clacton-on-Sea
- Felixstowe
- Brixworth
- Bideford
- Aberystwyth
- Skegness
- Isle of Anglesey
- Barrow in Furness
- Lancaster
- Whitby
- Carlisle
- Dumfries
- Berwick-upon-Tweed
- Inverness.
