The 149-page document, handwritten in a cardboard-backed notebook, will be auctioned at Sotheby's next month after it was found by an elderly relative.
Some 25 hours of this, crushed and cramped, dozing on straw for a few minutes, coming back to consciousness frozen.
However, most soldiers would only spend an average of four days at a time in a front line trench.
Their daily routine when in the front line varied according to where they were.
Smirnoff (who recently announced she is leaving "Dancing") co-wrote the book with her best friend and manager, Lindsay Rielly.
Smirnoff and Rielly had so many horrendous yet laugh-out-loud dating stories, they decided to compile them all into one book."It's great that we click in business, but (also) in life too," said Rielly, co-founder of creative agency Continuum Entertainment Group. "I was asking my guy friend for tips when I first started dating again and he said, 'You tend to stop smiling.