in the center, juan núñez de lara and the military order of santiago with 3,000 knights finally smashed through the enemy line and crossed too, riding hard up the hill where abu hasan's camp was clearly visible. the forces hidden in tarifa also attacked the sultan's camp at the same time, and the troops defending it (about 3,000 horse and 8,000 foot) withdrew, half of them fleeing towards algeciras and the other half joining the main struggle in the valley, where the sultan's army was still largely intact.