What famous poem did John McCrae write during World War I?

John McCrae wrote the famous poem "In Flanders Fields" during World War I, which is known for its poignant imagery and powerful themes of loss and remembrance. The poem was inspired by McCrae's experiences as a medical officer during the war, particularly the death of his friend Lieutenant Alexis Helmer. In it, McCrae reflects on the graves of fallen soldiers in Flanders, Belgium, symbolized by poppies that grow in the area. This imagery has become synonymous with memorials for those who died in conflict, particularly in Canada where the poem remains an integral part of Remembrance Day ceremonies.

The other titles mentioned, while they may evoke themes related to war, do not pertain to John McCrae. "The Great War" could refer to various works or discussions concerning World War I as a whole. "Ode to the Fallen" may suggest tributes to soldiers but does not specifically relate to McCrae's work. "Battle Hymn" is more general and not connected specifically to McCrae's poetry or the context of World War I. This makes "In Flanders Fields" the clear and significant choice, as it captures the essence of remembrance associated with the sacrifices made during the war.