These are the faces of Britain's brave soldiers, with suffering and fortitude written into every crease and frown line.
The astonishing pictures show how a tour of Afghanistan transforms the features of these relaxed-looking men and women into careworn, hard-bitten masks.
Even more amazingly, their faces dramatically soften again on their return from their three-month trips.
Photographer Lalage Snow, who took the eye-opening photographs of members of 1st Battalion The Royal Regiment of Scotland, said she was 'shocked' at how drastically the soldiers' faces changed.
Her 'We Are The Not Dead' project traces the lives of the servicemen and women over seven months before, during and after their tours.