A groundbreaking ceremony has taken place ahead of a new sculpture being placed in the National Memorial Arboretum in Staffordshire.
The memorial will commemorate the sacrifices of 5,349 submariners who lost their lives.
The Submariner Memorial Appeal was launched in 2018 to raise £440,000 to fund the sculpture and, for many families, it will be the only dedication they have for their loved ones - who were given no formal grave.
Captain Irvine Lindsay, Deputy Commodore of the Submarine Service, said the memorial will "mean everything" to members of the service.
"For a very long time we've been the silent service.
"Our actions are hidden away, we don't talk about what we do and it's really nice to have an opportunity to let the families, in particular, see a memorial where they can come and [have] some private contemplation and [have] a memorial to the actions of submariners for the last 120 years."
The statue will arrive at the National Memorial Arboretum in May and will sit among other memorials dedicated to the Royal Navy.