 Once the brigade arrived, many of the Germans around the drop zone withdrew or offered no further resistance. The first unit on the ground, 10 Para, attacked and destroyed the Dutch SS Wachbattalion while Brigadier Hackett personally captured ten Germans shortly after landing. When Hackett arrived at brigade headquarters, he was informed by Lieutenant Colonel Mckenzie of the division's staff about the change in plans, explaining that 11 Para was to be detached from his brigade to support the push into Arnhem. At the same time the KOSB, until then responsible for defending the northern side of the landing grounds, were attached to 4th Parachute Brigade to replace 11 Para. Meanwhile, the KOSB still had to defend landing-zone' L ', to protect gliders arriving on day three. While Hackett formulated a new plan, Mckenzie returned to divisional headquarters, to be informed on his arrival that 60 German tanks were approaching Arnhem from the north. Transport aircraft passing over occupied channel ports had confirmed German suspicions of a second lift such that they were able to give their troops at Arnhem forty-five minutes advance notice of the allies' arrival. Prepared in advance for such an eventuality, a Waffen SS mobile unit had been dispatched towards the likely landing grounds.
