Trident.

This is coolbert:

“something went wrong”

Surely it did, didn't it!

"Britain’s entire fleet of attack subs ‘out of service’ – media"

As seen at Russian Times [RT] consider not the British attack subs being out of action but rather the misfire of the American Trident missile from a British submarine and what occurred.

"According to the newspaper, the Trident ballistic missile was set to be tested for the first time in four years by the HMS Vengeance, the fourth and final Vanguard-class nuclear-capable submarine of the Royal Navy, last June. The sub docked at Port Canaveral in Florida, the US base employed by the Royal Navy for final checks, before launching an unarmed Trident missile into the so-called 'Eastern firing range' off the west coast of Africa."

"No news reports followed the test, and no usual 'successful test flight' announcement was made at that time. A navy source told the newspaper that “something went wrong” after the Trident was fired from the submerged submarine. The missile might have veered off in the wrong direction toward the American mainland instead of heading across the Atlantic, the source claimed."

“'There was severe panic that this test launch was not successful. Senior figures in military and government were keen that the information was not made public,'”

AND WHERE EXACTLY DID THE MISSILE "VEER" OFF-COURSE TOO AND WHERE DID IT LAND??

coolbert.