This was one of the most popular themes during the interwar period. Writers celebrated the "heroics of front-line soldiers in War I, ... the thrill of combat and the sacredness of death when it is in the service of the fatherland." Popular writers in this genre included Ernst Jünger and Werner Beumelburg (de), an ex-officer. Prominent books include Ernst Junger's "Storm of Steel" (1920), "Struggle as Inner Experience" (1922), "Storms" (1933), "Fire and Blood" (1925), "The Adventurous Heart" (1929), and "Total Mobilization" (1931).