Great film,and very interesting,on TV last week there was a programme about the under mining and placement of 400 tons of explosive in 17 tunnels under the German lines,when detonated the effect was devastating,on the film it described how the defending German troops could see the line of huge explosions coming towards them but there was nowhere to go to get away from them,the craters are still there some filled with water others criss crossed with footpaths,I think all are still war graves,when seen from the air as in the tv prog they are quite awe inspiring,apparently when detonated the rumble of the explosions rattled the crockery in No,10 Downing St,
Don,