FINALLY, a thread about defensive obstacles! Huzzah!
We did a load of research on beach defences, hardly any of which made it into the game.
I highly recommend Hitler’s Atlantic Wall by Anthony Saunders, Sutton Books, ISBN 0 7509 25442, which achieves the near-mythical feat of making cement:sand:gravel ratios fascinating.
The “Hedgehogs” , made of welded lengths of train track or construction girder, were primarily anti-tank obstacles. There were several patterns of obstacle designed to stop or dissuade landing craft, notably the wooden ramps made from an angled telegraph pole. These are often thought to point towards the sea to rip into advancing hulls, but were actually supposed to point up the beach, forming an inclined ramp to tip over flat-bottomed landing craft.
The movie “Saving Private Ryan” had a bunch of these in the Omaha beach sequence but according to the Saving Private Ryan Online Encyclopedia (http://www.sproe.com/w/woodenramps.html): “The production team on Saving Private Ryan mistakenly placed most of the wooden ramps facing towards the sea instead of towards the beach. Although such a placement would probably have had some kind of negative effect on incoming forces, this was not historically accurate and did not represent how the Germans deployed the wooden ramps. A few of the ramps are placed accurately, however, as can be seen in the scenes depicting the dead Sean Ryan on Omaha Beach and the later D-Day +3 scenes, which show a long shot of the beach with ramps facing in both directions. Some sources indicate that the ramps were all placed in the wrong direction initially, and that as many as possible were switched once the error was discovered.”
Oh, and the steel beams of the Hedgehogs were later cut up, sharpened and welded to the front of Allied tanks as hedge-ripping attachments. As the Allies advanced from the D-Day beach-head into Normandy they had to fight their way through countryside called bocage - thick earth banks topped with metres-thick hedgerows every hundred metres or so which made perfect defensive barriers for the German defenders, slowed the Allied advance to a crawl and caused heavy casualties. Allied tanks couldn’t push through bocage without some sort of massive sharpened ram so they improvised them out of the now-useless beach defences. So the anti-tank Hedghog obstacles were made into on-to-tank anti-Hedge-obstacle rippers.
There. I’ve been waiting to brandish these factoids for YEARS!