The Zulus now brought up a strong reinforcement from the right, so as to assist those engaged with the cavalry. Buller's men fought in the Dutch fashion, in two ranks; the first mounted and ready to dash in a moment upon any weak point in the enemy's line, the second on foot, using their saddles as a rest for their rifles. As soon as the front rank became too hardly pressed, they cantered to the rear and dismounted and opened fire, while the second rank mounted in readiness to charge. Gradually Buller and Shepstone fell back, the Zulu column pressing upon them until well within reach of the gatlings and Martinis. The cavalry then took refuge in the square, and over the ridges of the front and left the Zulu column with loud shouts swept down upon the square. The British infantry now opened fire. Gatlings and rifles poured in their deadly hail of fire, while the guns swept the Zulu ranks with shrapnel and grape. Terrible as the fire was, the Zulus pressed bravely forward, filling up the gaps made in their ranks, their wild war-cry rising even above the roll of the rifle-fire. The fiercest attack came from the Unodwingo kraal. Forming under cover of the kraal, a large body, led by a chief on a white horse, and formed in a hollow square, dashed at the right rear angle of the British formation. Tremendous as the fire was, they pressed forward until it seemed as if they would come to close quarters with the column; but, brave as the Zulus were, it was impossible to withstand the fire which the 21st, 94th, 58th, and Royal Engineers poured into them. The square was broken up, and after a moment's pause the Zulus turned and sought shelter from the leaden hail.