Meanwhile Lord Chelmsford had moved the main body of his forces to the capture of a large kraal near Isandlhwana, leaving about a thousand British, Colonial and native troops to guard the camp. Despite the warnings of some Dutch farmers, no attempt had been made at protecting the place by trench, or embankment, or even by the traditional and easy laager of wagons. Danger was hardly dreamed of until, on January 22d, the horns of a Zulu army of twenty thousand men were found to be closing around the devoted troops. There was practically nothing to do but to die, and this the soldiers did with their faces to the foe, fighting as long as their ammunition lasted and killing over a thousand Zulus. A few irregular mounted troops escaped, as did the bulk of the natives; but seven hundred British regulars and over a hundred Colonial troops were slaughtered by an enemy who gave no quarter and from whom none was asked or expected. Not far away from this camp, on the Natal frontier and guarding the line of communication, was a small depot for provisions and hospital work under the charge of Lieutenants Chard and Bromhead with 130 soldiers. In the afternoon of the fateful day at Isandlhwana this little post of Rorke's Drift was attacked by a picked Zulu army of four thousand men, and for eleven hours was defended so desperately, behind hastily improvised fortifications of biscuit boxes and grain bags, that the enemy retired after leaving over 300 men dead on the field. The little garrison was saved, and, more important still, Natal was saved from a sweeping and devastating raid of savage warriors. Lord Chelmsford at once fell back upon his base of supplies in the Colony, and the other columns at Etshowe and Kambula, respectively, proceeded, as already stated, to fortify themselves and await events. Further movements were slow in arrangement and reinforcements slow in coming, but, finally, Lord Chelmsford advanced again into Zululand with 4,000 British and Colonial troops and a thousand natives, and on July 4th, after relieving Etshowe and beating back the enemy at Gungunhlovu, reached Ulundi, where he defeated a Zulu army of 20,000 men. [Sidenote: Death of Prince Imperial]