From Goodreads:
A Farewell to Arms is the unforgettable story of an American ambulance driver on the Italian front and his passion for a beautiful English nurse. Set against the looming horrors of the battlefield – the weary, demoralized men marching in the rain during the German attack on Caporetto; the profound struggle between loyalty and desertion—this gripping, semiautobiographical work captures the harsh realities of war and the pain of lovers caught in its inexorable sweep. Ernest Hemingway famously said that he rewrote his ending to A Farewell to Arms thirty-nine times to get the words right.