Big Bertha, Germany's World War I top secret mobile artillery piece, easily destroyed French and Belgian forts, helping set the stage for trench warfare. In the first days of World War I, Germany unveiled a new weapon - the mobile 42cm (16.5 inch) M-Gerät howitzer. At the time, it was the largest artillery piece of its kind in the world and a closely guarded secret. When war broke out, two of the howitzers were rushed directly from the factory to Liege where they quickly destroyed two forts and compelled the fortress to surrender. After repeat performances at Namur, Maubeuge and Antwerp, German soldiers christened the howitzers 'Grosse' or 'Dicke Berta' (Fat or Big Bertha) after Bertha von Krupp, owner of the Krupp armament works that built the howitzers. The nickname was soon picked up by German press which triumphed the 42cm howitzers as Wunderwaffe (wonder weapons), and the legend of Big Bertha was born. To the Allies, the existence of the howitzers came as a complete surprise and the sudden fall of the Belgian fortresses spawned rumors and misinformation, adding to the 42cm howitzer's mythology. In reality, 'Big Bertha" was but the last in a series of large-caliber siege guns designed by the German Army for the purpose of destroying concrete fortifications. It was also only one of two types of 42cm calibre howitzers built for the army by Krupp and only a small part of the siege artillery available to the German Army at the outset of the war. Such were the successes of the German siege guns that both the French and British Armies decided to field their own heavy siege guns and, after the German guns handily destroyed Russian forts during the German offensives in the east in 1915, the French Army abandoned their forts. However, by 1916, as the war settled into a stalemate, the effectiveness of the siege guns diminished until, by war's end, 'Big Bertha' and the other siege guns were themselves outmoded. This book details the design and development of German siege guns before and during World War I, to include four models of 30.5cm mortars, two versions of 28cm howitzers, and two types of 42cm howitzers (including 'Big Bertha'); in total, eight different types of siege guns. Accompanying the text are many rare, never before published, photographs of 'Big Bertha' and the other German siege guns. Colour illustrations depict the most important aspects of the German siege artillery.

In the early days of World War I, Germany unveiled a new weapon – the mobile 42cm (16.5 inch) M-Gerät howitzer. At the time, it was the largest artillery piece of its kind in the world and a closely guarded secret. When war broke out, two of the howitzers were rushed directly from the factory to Liege where they quickly destroyed two forts and compelled the fortress to surrender. After repeat performances at Namur, Maubeuge and Antwerp, German soldiers christened the howitzers 'Grosse' or 'Dicke Berta' (Fat or Big Bertha) after Bertha von Krupp, owner of the Krupp armament works that built the howitzers. The nickname was soon picked up by German press which triumphed the 42cm howitzers as Wunderwaffe (wonder weapons), and the legend of Big Bertha was born. This book details the design and development of German siege guns before and during World War I. Accompanying the text are many rare, never-before-published photographs of 'Big Bertha' and the other German siege guns. Colour illustrations depict the most important aspects of the German siege artillery.

As the outbreak of World War II approached, Nazi Germany ordered artillery manufacturers Krupp and Rheimetall-Borsig to build several super-heavy siege guns, vital to smash through French and Belgian fortresses that stood in the way of the Blitzkrieg. These 'secret weapons' were much larger than the siege artillery of World War I and included the largest artillery piece of the war, the massive 80cm railway gun 'schwere Gustav' (Heavy Gustav). However, these complex and massive artillery pieces required years to build and test and, as war drew near, the German High Command hastily brought several WWI-era heavy artillery pieces back into service and then purchased, and later confiscated, a large number of Czech Skoda mortars. The new super siege guns began entering service in time for the invasion of Russia, notably participating in the attack on the fortress of Brest-Litovsk. The highpoint for the siege artillery was the siege of Sevastopol in the summer of 1942, which saw the largest concentration of siege guns in the war. Afterwards, when Germany was on the defensive in the second half of 1943, the utility of the guns was greatly diminished, and they were employed in a piecemeal and sporadic fashion on both the Eastern and Western Fronts. In total, the German Army used some 50 siege guns during World War II, far more than the thirty-five it had during World War I. Supported by contemporary photographs and detailed artwork of the guns and their components, this is an essential guide to these guns, exploring their history, development, and deployment in stunning detail.

"Each weapon is presented with a short description, images and a reference table of key technical data, supplemented by colour drawings."--Back cover

In August 1914 the German main attack was conducted by the 2nd Army. It had the missions of taking the vital fortresses of Liège and Namur, and then defeating the Anglo-French-Belgian forces in the open plains of northern Belgium.The German attack on the Belgian fortress at Liège from 5 to 16 August 1914 had tremendous political and military importance. Nevertheless, there has never been a complete account of the siege of Liège. The German and Belgian sources are fragmentary and biased. The short descriptions in English are general, use a few Belgian sources, and are filled with inaccuracies. Making professional military use of both German and Belgian sources, this book for the first time describes and evaluates the construction of the fortress, its military purpose, the German plan, and the conduct of the German attack on the night of 5-6 August. Previous accounts emphasize the importance of the huge German “Big Bertha” cannon, to the virtual exclusion of everything else: the Siege of Liège shows that the effect of this gun was a myth, and shows how the Germans really took the fortress. This is how the whole bloody mess started.

World War II marked the zenith of railway gun development. Although many of the railway guns deployed at the start of the conflict were of World War I vintage, Germany's ambitious development programme saw the introduction of a number of new classes, including the world's largest, the 80cm-calibre Schwerer Gustav and Schwerer Dora guns, which weighed in at 1,350 tons and fired a huge 7-ton shell. This book provides an overview of the types of railway guns in service during World War II, with a special focus on the German railway artillery used in France, Italy and on the Eastern Front, and analyzes why railway guns largely disappeared from use following the end of the war.

Breaking the Fortress Line 1914 offers a fascinating new perspective on the German offensive against France and Belgium in 1914. In graphic detail it describes the intense fighting that took place around the forts and fortified cities that stood in the path of the German invasion. The ordeal began with the German assault on the mighty fortress of Lige. They took twelve days to batter their way through the 'Gateway to Belgium', losing thousands of men in repeated frontal assaults, and they had to bring up the heaviest siege artillery ever used to destroy the defences.This is the epic struggle that Clayton Donnell depicts in this compelling account of a neglected aspect of the battles that followed the outbreak of the Great War. Not only does he reconstruct the German attack on the strongpoints they encountered along the entire invasion line, but he traces the history and design of these fixed defences and analyses the massive military building programmes undertaken by the French, the Germans and the Belgians between 1871 and 1914. Thousands of huge forts, infantry strongpoints, bunkers, casemates and shelters were dug out along the French and German borders. The German Moselstellung and Steinbruch-stellung were born. These massive concrete fortress systems with steel gun turrets and diesel motors to generate electricity were a completely new concept of fortress design.As war approached, France and Germany devised plans to overcome each other's powerful armies and these border defences. The French plan avoided contact with the German fortress system. But the Kaiser's army faced twelve forts at Lige, nine more at Namur, and then the strongpoints of the first and second Sr de Rivires lines. Clayton Donnell provides a gripping narrative of the violent confrontation that followed.