Early on the 13th the army was at length marching on the enemy. The heavy guns moved along the road leading over the Russoul ridge to the Jhelum fords. Gilbert's division marched on their right, Colin Campbell's (the third) on their left, with the cavalry and light artillery on their respective flanks. The original intention was that Gilbert's (the right) division, with the greater part of the field-guns, was to advance on Russoul, while Campbell's division and the heavy guns should stand fast on the left, overthrow the left of the Sikhs, and thus cut them off from retiring along the high road toward Jhelum. Their left thus turned, Gilbert and Campbell were to operate conjointly against the Sikh line, which it was hoped would be rolled back upon Moong and driven to the southward. A reconnaissance made by Tremenheere and Durand reported the road clear and practicable up to Russoul, but that the enemy was marching down from the heights apparently to take up a position on the plain. The march was resumed to beyond the village of Umrao; but when deserters brought in the intelligence that the enemy was forming to the left front of Gough's line of march behind the village of Chillianwallah, he quitted the Russoul road, inclined to his left, and moved straight on Chillianwallah. An outpost on the mound of Chillianwallah was driven in upon the main body of the enemy, and from that elevated position was clearly discernible the Sikh army drawn out in battle array. Its right centre directly in front of Chillianwallah was about two miles distant from that village, but less from the British line, which was being deployed about five hundred yards in its front. There was a gap nearly three-quarters of a mile wide between the right wing of the Sikhs under Utar Singh, and the right of the main body under Shere Singh. The British line when deployed could do little more than oppose a front to Shere Singh's centre and right, which latter, however, it overlapped a little, so that part of Campbell's left brigade was opposite to a section of the gap between Shere Singh's right and Utar Singh's left. Between the hostile lines there intervened a belt of rather dense low jungle, not forest, but a mixture of thorny mimosa bushes and wild caper.