Category Archives: Military

Fortifications

Renaissance fortifications map well. Clear lines, often in a symmetrical pattern, stand-out amongst any other topographic detail on display. Such beauty of design has come down to us at a cost of necessity though. Plans were born out of the need to counter the threat from a new type of warfare as cannon balls wrecked havoc on the old castle walls.

The radical design change from castle to fort came about in fifteenth century Italy, when French troops involved in the Great Italian Wars used cannon against castles. When older fortifications crumbled against the onslaught Italian engineers, including Michelangelo in Florence, designed new fortifications which soon became the standard across Europe. The sharp angles and triangular bastions of the new design deflected incoming artillery, and gave the new structures their name, Star Forts. With their angled walls and triangular bastions star forts also had the additional benefit of funnelling attacking troops into narrow spaces where enfilading fire rained down on them from within the fort. With these angled walls there was now no longer any place in which defending troops couldn’t direct fire.

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Freiburg, in South West Germany, a classic example of a star fort incorporating water from the Dreisam river in its defences. Image from ‘Graphische Beilagen zum…des werkes feldzüge des Prinzen Eugen von Savoyen. C1 a.7

With the new design of the star fort architects and engineers no longer needed to make the best of the landscape. Previously hills were used to build castles on, the steep slopes were hard to attack and with the only weapon available before the cannon  being the arrow shot from a bow the high walls and steep sides made defence easy. Now forts could be placed anywhere, making good use of the commerce and transport that rivers brought. Cities soon grew in and alongside the forts.

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Image of a canon called a Bombenmorser and bomb from Graphische Beilagen zum

One of the main elements to the new design was the use of low walls, giving less of an area for cannon balls to strike. Earthen banks were thrown up in front of the walls to deaden the impact of artillery but this would have, in theory, made it easier for troops to break into the fort. To counteract this ditches were dug in front of the banks, creating a steep slope and thus slowing down any advance. In the picture below, of Graz in Austria shows the ditches and banks used in the construction of a fort (image from Graphische Beilagen…). 

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Another example of a star fort is that of Neuhausel, originally in the Hungarian Empire but now in Slovakia and named Nove Zamky. The fort was originally built to defend the city against the troops of the Ottoman Empire. This picture, again from the Graphische Beilagen…, shows the fort under bombardment

aerial and panormaic view

This radical new approach to the construction of defences was supported by a growth in literature about the design of the fortifications. Focusing on the geometry of the design, the engineering of the construction and the military benefits of attack and defence the publications were one of the many sciences which blossomed at the time of the Renaissance. The next two images come from Les Travaux de Mars ou l’art de Guerre’, by Allain Manesson Mallet, published in France in 1696. The first shows the different designs now available to the military engineer, and interestingly compares modern to ancient fortifications. The second is a lesson in geometry, with a timely reminder underneath of what all this abstract paper work leads to.

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This image come from Introduction a’ la Fortification, by Nicolas de Fer in Paris in 1690, again showing designs of fortifications.

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To finish, this beautiful map of Portsmouth, a long established naval port, from circa 1716,

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The ichnography of Portsmouth, c.1716. Gough Maps Hampshire 10

Ichnography is another term for a ground plan. The map is a very good example of a coastal plan of the time, featuring a compass rose and naval scene, and to add to this blog, particularly fine defensive walls.

 

A battle plan from the Second Opium War

Sketch illustrating the action fought on the 18th of September 1860… is an example of a type of map called a Battle Plan. Created by historians to illustrate books on campaigns these types of map have also been used for educational purposes or for items for sale to the general public. The Bodleian holds in its collection a large number of such plans; the Napoleonic wars, the American Civil War and numerous colonial conflicts in Africa are just a few examples available to consult. This plan is of the  battle of Chang-Chia-Wan, fought between French and British forces and the Chinese between 1857 and 1860 during the Second Opium War over trade restrictions, hostility to British settlers and the selling of opium in the West.

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Divisions are indicated by the rectangular blocks and troop and cavalry movements shown by lines of advance. The use of the rectangular box to indicate units of troops is a long established practise which continued up to and past the Second World War, the main difference between the old and the new being that divisions got bigger as the areas of conflict grew, and maps as detailed as this, which has a scale of 2 inches to a mile, become less relevant as whole fronts are depicted.

Judging by the marble design on the verso of the map and the tag (not shown) at the top of the map this is most probably a fold-out from a book. Single sheet maps from the time don’t usually have the elaborate marble pattern on the back that this one has.

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Marbling is created when paints are floated onto a gum solution and then swirled into patterns, paper is then laid on top of the pattern which is transferred on to the paper and then dried.

It is interesting to note that the map is lithographed by Col. Sir Henry James, Director-General of the Ordnance Survey. A second map from the Opium Wars shows the situation between the 1st and 21st of August and the taking of the Taku forts (D5:17 (30)).

Sketch illustrating the action fought on the 18th of September, 1860 by the allied armies in China taken from the road survey made by Lieut: Colonel Wolseley, D.A.Q.M.G. and Lieut: Harrison, Rl. Engineers [1861]. D5:17 (29)

 

Recycling

Paper shortages during the Second World War meant that large numbers of maps were re-used to produce new sheets on the backs of older copies. While for the most part this meant that cartographic departments of various armies, the Geographical Section General Staff for the British and the Generalstab des Heeres for the Germans amongst others, would use old stock from their collections towards the end of the war Allied forces began to capture large areas of land formly occupied by Axis troops, and with this also captured large amounts of enemy resources, including maps.

With the push into Germany starting in late 1944 the need for large scale detailed mapping of the country became clear, and this is one of the sheets produced by the G.S.G.S. at 1:25,000 scale. The example here is one of a set of over 2,500 sheets.

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But what marks this sheet out from all the others is what is on reverse. When you turn the map over you find, overprinted with thick blue lines and the word ‘Cancelled’, is part of a map which made up a series made by the German Army in preparation for the planned invasion of England in 1941. With perfect symmetry you have an map for the invasion of Germany printed by the British War Office printed on the back of part of a sheet published 3 years before by the Germany Army for the invasion of Britain.

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Germany 1:25,000. Geographical Section, General Staff No. 4414. Published in 1945 by the War Office. C22 (15a), sheet 1321.