Book excerpt: Although photography was already a well-established fixture of 19th century society, it was the marriage of photography and the airplane that created the new military art of aerial observation during World War I. Shooting the Front is a pioneering study of the impact of aerial photography on America's fledgling air force during its baptism of fire above the trenches of the Western Front. This comprehensive history from the Defense Intelligence Agency highlights aerial photography's ability to command the high ground and provide a concise view of a battle area, both tactically and strategically. It is an authoritative account of aerial reconnaissance and the interpretation of photographs as they evolved into the most important sources of intelligence along the entire Western Front during the Great War. This comprehensive resource will interest military history and aviation enthusiasts, as well as students of the history of intelligence. The numerous illustrations, many never before published, include images of aircraft, cameras, and people, authentic official aerial photos, and maps in varying scales, all designed to help the reader relive the exhilarating and dangerous experience of aerial observation in World War I.