a farewell to arms armando diaz battle of asiago battle of mount ortigara battle of vittorio veneto battle of the piave river central powers ernest hemingway erwin rommel france garrison geographic coordinate system german empire infiltration tactics kobarid longarone luigi cadorna oskar von hutier otto von below piave river pietro badoglio rapallo slovene language slovenia socialism spiked supreme war council united kingdom of great britain and ireland united states venice world war i