If London Got Nuked

In the unlikely event of a nuclear missile launch towards Britain, there could be as little as 10–20 minutes’ warning. Intercontinental ballistic missiles (ICBMs) travel at roughly 4 miles per second—leaving very little time to respond.

If such a scenario ever occurred, emergency alerts would likely be sent to mobile phones, which could be limited to emergency communications only. Government advice might include staying indoors—ideally in a basement or under the stairs—as brick and concrete can help reduce radiation exposure.

A nuclear detonation would cause severe damage in the immediate area and release harmful radiation. Those outside the direct impact zone would be advised to shelter in place for at least two weeks, limit outdoor exposure, and follow hygiene recommendations to reduce contamination.

While missile defence systems exist, they aren’t foolproof. That’s why diplomacy and prevention remain our best defence.

Let’s stay informed—not alarmed—and hope such knowledge never needs to be used.
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https://www.youtube.com/watch?v=aK9gvbdqAzg