The Duke of Cambridge paid tribute to the 'continued resilience' of the Royal Navy's submariners and their families as he unveiled a new memorial at the National Memorial Arboretum.

William gave a short speech on the Submarine Service during the unveiling ceremony at the Staffordshire site on Wednesday, in which he said: 'You would be hard-pressed to find a more challenging environment to serve in.'

The duke spoke of how the new monument 'harnesses in physical form the struggles this life of service can lead to', before cutting a ribbon to officially unveil it.