On day two, problems in Arnhem forced Hicks to change the divisional plan. Only the 2nd Parachute Battalion had reached the road bridge—strong German defences had halted the other battalions so Hicks decided that the Staffords would link up with the 1st Parachute Brigade in an attempt to reach their objective. However, the Staffords also failed to break through the German defenders. Bad weather over England kept the planned second lift on the ground. The first troops did not arrive until 15:00, a delay that gave the Germans time to approach the landing grounds and engage the KOSB in numerous probing attacks on the northern perimeter. At one stage KOSB commanding officer Lieutenant Colonel Payton-Reid led a bayonet charge to clear the Germans from the area. Meanwhile, the Borders were repeatedly attacked from the south of landing zone's 'X' and 'Z', and were eventually forced to call on the 75 mm guns of the 1st Airlanding Light Regiment to break up the attacks. Hicks had previously decided to send the Staffords on the second lift to join their battalion fighting in Arnhem, while he also sent the 11th Parachute Battalion on the same lift to support 1st Parachute Brigade. The KOSB, until then responsible for defending the landing ground, were attached to 4th Parachute Brigade to replace the 11th Parachute Battalion. However they were still responsible for defending landing ground 'L', for the arrival of the Poles gliders on day three. This left only the Borders, No. 2 Wing GPR and the field ambulance under brigade command.