Jan Dijkgraaf published a new 'Letter from Jan' to CDS Eichelsheim. In it, he addressed him as Onno and wrote about hours of training for one moment when certainty was needed: where the own troops and civilians were and whether there was a child behind the blue door. https://t.co/TDEwv8lMqM https://t.co/MnI8FFQ9lq #BriefjeVanJan #CDSEichelsheim #Training (translated)