I am looking at BAOR in the early 1970s, pulling together orbat details with strategy, tactics and defence plans. I'd like to understand the likely battlegrounds should the worst have happened. If the Warsaw Pact (3rd Shock Army?) had attacked, which were the main avenues into the 1 British Corps sector that they were likely to have taken, or attempted to take? Assuming their first objective would be to cross the Weser, where did we expect them to have aimed for? Which were the most likely routes to be defended? What localities were assumed to be the likely main centres for defence? I have read that the British sector contained many pre-prepared 'improved positions'. Is this correct? What were the nature of these (mines, trenches?)? Where were these positions concentrated around? I'd be grateful if anyone can point me in the direction of any useful information relating to the planning and tactics for the period late 60s/early 70s (declassified of course).... or anyone willing to make a few notes. Thank you in advance.