In the final years of the Second World War, a German teenager records his daily life as the world around him slowly unravels. A rare, unembellished firsthand account of life in Nazi Germany, written by a sixteen-year-old anti-aircraft auxiliary in 1943/1944. In 1943, the author was still a schoolboy when he was assigned to naval anti-aircraft batteries in Kiel, one of the Third Reich’s most important naval cities. The war had begun to turn decisively against Germany, and daily life was increasingly shaped by air raids, shortages, fatigue, and the growing realization that official propaganda no longer matched reality. This memoir captures that moment from within: from the home front line, from the perspective of an adolescent drawn into the machinery of war. This book documents the texture of everyday wartime life, including: the shift from classroom routines to military duty, - the mindset of teenagers suddenly treated as soldiers, - the tension between ideological expectations and lived experience, - and the rhythm of duty, exhaustion, fear, and resignation that defined the year. This bilingual edition presents the complete content, exactly as the author later transcribed and edited it from his wartime notes, as a faithful English translation by his grandson. A career naval officer, the editor brings professional familiarity with military terminology and structure, allowing the translation to preserve the restraint, precision, and matter-of-fact tone of the original. A historical timeline situates the diary within the broader events of 1943, including the escalation of the Allied bombing campaign, Goebbels’ call for “Total War,” and the steady erosion of Germany’s strategic position. These contextual elements help modern readers understand how a teenager in northern Germany perceived developments that historians now recognize as pivotal. More than a historical document, this is a personal testimony from a generation abruptly pushed into adulthood. It offers a perspective often absent from standard World War II literature—not the battlefield, but the barracks, shelters, coastal batteries, and the internal world of young people navigating discipline, doubt, and survival. Authentic, restrained, and carefully edited for clarity, this memoir will be of interest to readers of World War II history, naval and air-defense history, youth conscription, German civilian life, and primary sources from within the Third Reich. Important note: The side-by-side German–English edition is available only in the Paperback and Hardcover versions. The Kindle edition contains the English translation only.