luckily and not know anything about this movie i be curious enough to tape it from tv . and then the tape run out just five minute before the end . but i be glad i manage to get most of it because this be a really great spy movie . there be the usual toy submarine and a bit foggy plot and but also very chill and even dare moment . consider the production year 1969 and the certain slight lesbian overtone must have raise a few eyebrow . of course now it doesn not surprise anyone and those scene in fact seem pretty beautifully do . and it not just because of the two george actress . the gas attack seem to hit every viewer very strongly and no wonder and and it certainly do hit me . very effective . also the viewpoint from the both side of the opponent give the whole story more deepness along the usual suspense and action . this be not just a heroic war tale of one victorious side and but show what lie behind the victory in good and bad . well and be a case of war and mostly bad . for the fan of composer ennio morricone this be also a must . his work be always excellent and touch but never over the top . and i think i have to try to catch more movie with suzy kendall . talk about fräulein . let hope they get this on dvd soon and so i can have the entire movie in my collection and more people will become familiar with this very little known gem .