After the landing of the Polish paratroopers, the German army quickly deployed troops from the east, fearing that the Polish soldiers would advance towards the traffic bridge at Arnhem. To cut them off, the Germans had established a strong defensive position behind the railway embankment of the Arnhem-Nijmegen railway line on the 22^nd of September 1944. The soldiers made foxholes, dug themselves in, and waited for the enemy. This assembled group of different units, was called 'Sperrverband Harzer'. They attacked the Polish troops mainly with the help of (heavy) artillery.