East Germany decided to upgrade the fortifications in the late 1960s to establish a "modern frontier" that would be far more difficult to cross. Barbed-wire fences were replaced with harder-to-climb expanded metal barriers; directional anti-personnel mines and anti-vehicle ditches blocked the movement of people and vehicles; tripwires and electric signals helped guards to detect escapees; all-weather patrol roads enabled rapid access to any point along the border; and wooden guard towers were replaced with prefabricated concrete towers and observation bunkers. 
If you’ve never owned a GSD before you want to make sure you make the right choice. You will probably be looking for one with a medium drive, balanced nerves, clear head and does not push back too much. Picking out a quality GSD is vital for understanding what the possible outcomes will be. Making sure the puppy you get has the genetics you’re looking for is only the first step. Making sure the puppy receives proper training and socialization will also determine the outcome. Show lines would probably fit what you are looking for but a properly bred and trained working line with medium drive should also be considered. We are currently taking deposits on 2 different litters of working lines which may produce what you are looking for. If you decide to go with a show line I currently only have one adult male and no planned breeding at this time. You can contact my friend Anthony at http://
It had the unintended result of drastically increasing the percentage of those leaving through West Berlin from 60% to well over 90% by the end of 1958.  Those caught trying to leave East Berlin were subjected to heavy penalties, but with no physical barrier and subway train access still available to West Berlin, such measures were ineffective.  The Berlin sector border was essentially a " loophole " through which Eastern Bloc citizens could still escape.  The million East Germans who had left by 1961 totalled approximately 20% of the entire East German population.