DDR is East German behind the wall. When Comminism ruled, these dogs protected the border. West German working lines were in west Germany. Democratic side.
In the grand scheme of things, and what we see today... WGWL. are very high prey, flashy , happy and exuberant in the work.
DDR, less prey, more serious, slower to mature.
The lines are very mixed now.
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It does for my dog(Czech/WGx).do you find that suspicion affects focus in obedience