The author, Peter Müller, is a Swiss citizen born in 1960, whose command experience as a Lieutenant Colonel and Director in large companies neatly complements his qualifications as a military historian. For the past quarter of a century, he has made detailed investigations of armaments issues in the 1914 - 1945 period. Combined with extensive studies of archived records, that background has allowed Peter Müller to present the subject matter of this book from a more differentiated perspective than hitherto. The author challenges, links and complements key statements and opinions, thereby arriving at entirely new conclusions. Wolfgang Zimmermann, born 1962, has spent all his working life in the automotive sector. For the past decade, he has studied numerous developments of the 1939 - 1945 armaments industry. His technical qualifications provide a sound technical basis when analyzing and processing development trends in armaments and equipment. In-depth research and meticulous analysis of photographic material of the period have allowed him to accurately identify and date German Assault Guns and other armored vehicles of the World War II period.