having seen many websites regards the defence of Britain some say there was a trench system ive only ever seen a few pictures and they are located over looking the beeches. apart from the anti tank ditch were there any and still remainy trenches in the uk. thanks. also ive seen diagrams of the design of anti tank ditches and if designed correctley then the tank will get stuck so how did the German infintary get through them in Belgium. also were the ww1 trench system in france ever used by all sides during any battles in wwII i know that the Maginot line was used by the yanks. hope to here from you soon cheers.