During World War II it formed the centre of the Polish positions during the Battle of Wizna.
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The Border Defence Corps Regiment "Sarny", which operated the Area, was very well trained, and its soldiers, including Władysław Raginis, distinguished themselves during the Battle of Wizna (see Polish September Campaign), and in other battlefields in the area of Osowiec and Upper Silesia, where up to 80% of KOP died or were wounded.