Casualties
Exact Polish losses are unknown, mostly because very little is known of the soldiers that were taken as prisoners of war by the Germans. Out of 720 Polish soldiers only approximately 70 survived. Some successfully withdrew and reached the Polish lines, others were taken prisoner. Some of the prisoners were subsequently killed by the Germans, others were beaten and abused but survived and were eventually taken to POW camps.
German losses are not known either. Official release by the Wehrmacht mentioned "several dozen dead". It is however known that at least several hundred bodies of fallen German soldiers were exhumed from a local war cemetery.
In his diaries general Heinz Guderian noted that 900 German soldiers were killed in action, although that number is probably underrated. The Wehrmacht lost at least 10 tanks and several other AFVs in the struggle.
The history of the 10th Tank Division mentions for the 8th of september 9 KIA and 26 WIA for the ALA. The I./IR 86, which was the main unit of the capture of the bunkers reported on september 9th at 17.00 the loss of 40 men.. There are some losses of the Tank Regiment 8 reported as well. The following fights at Wysokie-Mazowieckie and Andrzejewo make it difficult to differentiate the losses.
Read more about this topic: Battle Of Wizna