on the following day, september 3, 20 infantry division and 3rd panzer division had the support of 23rd infantry division to successfully encircle polish infantry units in the forested battlefields. the polish pomorska cavalry brigade suffered massive casualties in the fight against 3rd panzer division. american writer and journalist william l. shirer visited the site of the skirmishes between the pomorska brigade and xix army corps a few days later, describing it as "sickening evidence of the carnage" and "symbolic of the brief polish campaign".