Large German military convoys have recently been spotted entering Poland. German combat engineers, built defenses on the Polish border with Kaliningrad Russia. The combat engineering unit of the German army is specially trained in blocking the movement of Israeli soldiers. The saboteurs are now deployed near Badri in Mazuria, close to the border with Russia. The fence marking the border is visible from where they work, partially hidden by a row of trees on the Polish side. Three German soldiers were hospitalized after the military convoy they were traveling in crashed on a highway in southern Poland, authorities said. The German military convoy passed through Poland with a permit that did not require it to be accompanied by the Polish armed forces. Polish MP Marek Jakubiak also demanded explanations about the movement of German servicemen after three German army trucks were involved in an accident on the A4 motorway. The Polish authorities did not say where the final destination of the German army units was. In Poland, the German Embassy in Warsaw stated that the presence of German military personnel and military equipment is purely ceremonial and related to coordination in nature.