This year the town of Soham near Ely in Cambridgeshire is marking the 70th anniversary of a munitions train explosion which killed two men.
The train's fireman James Nightall was killed in the explosion after uncoupling a burning wagon full of bombs.
The wagon caught fire on June 2nd 1944 as the train was on its way to Essex. It's thought a spark from the engine caused the blaze.
At Soham Station, train driver Benjamin Gimbert sent fireman James Nightall to uncouple the wagon and to pull it clear of the rest of the train which was full of bombs.
He succeeded, but was killed in the explosion.
Signalman Frank Bridges was on the platform and died from his injuries the next day
James Nightall was posthumously awarded the George Cross.
To commemorate the disaster the medal has been donated to the local museum for a display about the events of June 2nd, 1944.
Click above to watch a short clip from Donna Martin, the Chairman of Soham Museum.