From the heights of Dover it was easy for the Britons to trace the movement of the fleet; guessing that it was making for the point where the cliffs ended, they hastened thither, preceded by their cavalry and their chariots, which they used constantly in their battles. They arrived in time to oppose the landing, which had to be risked under the most difficult circumstances. The ships, on account of their magnitude, could only cast anchor in the deep water; the soldiers, on an unknown coast, with their hands embarrassed, their bodies loaded with the weight of their arms, were obliged to throw themselves into the waves, find a footing, and combat. The enemy, on the contrary, with the free use of their limbs, acquainted with the ground, and posted on the edge of the water, or a little way in advance in the sea, threw their missiles with confidence, and pushed forward their docile and well-disciplined horses into the midst of the waves. Thus the Romans, disconcerted by this concurrence of unforeseen circumstances, and strangers to this kind of combat, did not carry to it their usual ardour and zeal. In this situation, Cæsar detached from the line of transport ships the galleys--lighter ships, and of a form which was new to the barbarians--and directed them by force of rowing upon the enemy’s uncovered flank (that is, on his right side), in order to drive him from his position by means of slings, arrows, and darts thrown from the machines. This manœuvre was of great assistance; for the Britons, struck with the look of the galleys, the movement of the oars, and the novel effect of the machines, halted and drew back a little. Still the Romans hesitated, on account of the depth of the water, to leap out of the ships, when the standard-bearer of the 10th legion, invoking the gods with a loud voice, and exhorting his comrades to defend the eagle, leaps into the sea and induces them to follow.[355] This example is imitated by the legionaries embarked in the nearest ships, and the combat begins. It was obstinate. The Romans being unable to keep their ranks, or gain a solid footing, or rally round their ensigns, the confusion was extreme; all those who leapt out of the ships to gain the land singly, were surrounded by the barbarian cavalry, to whom the shallows were known, and, when they were collected in mass, the enemy, taking them on the uncovered flank, overwhelmed them with missiles. On seeing this, Cæsar caused the galleys’ boats and the small vessels which served to light the fleet to be filled with soldiers, and sent them wherever the danger required. Soon the Romans, having succeeded in establishing themselves on firm ground, formed their ranks, rushed upon the enemy, and put him to flight; but a long pursuit was impossible for want of cavalry, which, through contrary winds in the passage, had not been able to reach Britain. In this alone fortune failed Cæsar.