When Guillaume Apollinaire was sent to the trenches during World War I, he had already published his groundbreaking book of poems, Alcools, inspiring artists of the budding Surrealist movement and making a foundational mark on twentieth-century literature. The letters he sent to his fianc e Madeleine Pag s while fighting on the front in Champagne offer an unprecedented look into the life and mind of this literary great. Ranging from memories...