Interesting. Do you have any more information about this? An article or something?
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I'd have to look for an english source, but basically it boils down to this.
Because the Dutch main center of defence was just a couple of hours drive away from the German border a serie of precoutionairy lines were erected. So along the meuse and IJsel river there was basically a lightly defended first line designed to hold up the enemy, blow bridges and alarm the main defences. Along bridges there were concrete bunkers with mg and light at, but there were no indirect fire weapons in this line.
The Germans intended to take this first line by surprise taking the bridges with assault teams from Battalion zbv 800, German soldiers with some dutch collaberators or dutch speaking germans doing the talking, in dutch "looking" uniforms.
Results were mixed. Mainly because there werent that many dutch troops around, so 30 men showing up at 2 in the morning raised suspision. After that it could go shootout with bridge blown or captured, or disarmament.