Lieutenant Colonel John McCrae was a soldier, physician and poet. He had the option of joining the medical corps due to his training and age, but volunteered instead to join a fighting unit as a gunner and medical officer.
It was his second tour of duty in the Canadian military. He previously fought with a volunteer force in the Second Boer War. He considered himself a soldier first; his father was a military leader in Guelph and McCrae grew up believing in the duty of fighting for his country and empire.
McCrae fought in the second battle of Ypres in the Flanders region of Belgium where the German army launched one of the first chemical attacks in the history of war. They attacked the Canadian position with chlorine gas on April 22, 1915, but were unable to break through the Canadian line which held for over two weeks.
In a letter written to his mother, McCrae described the battle as a "nightmare"
In Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
We are the Dead. Short days ago
We lived, felt dawn, saw sunset glow,
Loved and were loved, and now we lie
In Flanders fields.
Take up our quarrel with the foe:
To you from failing hands we throw
The torch; be yours to hold it high.
If ye break faith with us who die
We shall not sleep, though poppies grow
In Flanders fields.