Roger Roberts: 'When she was sunk, it was a big blow'
Roger Roberts was on board HMS Charybdis when it was hit by German torpedoes in 1943 off the coast of Guernsey.
The 97-year-old, who lives in Kidderminster, Worcestershire, spent four hours in very cold water before being rescued.
More than 460 men were lost at sea, and just over 100 survived.
We Were There aims to collect as many first-hand accounts as possible by 2025, the 80th anniversary of the end of World War Two, to preserve veterans' accounts for future generations.
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