It would be futile to publish one more war-book, unless the writer had been an eye-witness of unusual things. I am an American who saw atrocities which are recorded in the Bryce Report. This book grows out of months of day-by-day living in the war zone. I have been a member of the Hector Munro Ambulance Corps, which was permitted to work at the front because the Prime Minister of Belgium placed his son in military command of us. That young man, being brave and adventurous, led us along the first line of trenches, and into villages under shell fire, so that we saw the armies in action. With an introduction by Theodore Roosevelt.