Gallic War (4.18-4.22)

Within ten days after the timber began to be collected, the whole work was completed, and the whole army led over. Caesar, leaving a strong guard at each end of the bridge, hastens into the territories of the Sigambri. In the mean time, embassadors from several nations come to him, whom, on their suing for peace and alliance, he answers in a courteous manner, and orders hostages to be brought to him. But the Sigambri, at the very time the bridge was begun to be built, made preparations for a flight (by the advice of such of the Tenchtheri and Usipetes as they had among them), and quitted their territories, and conveyed away all their possessions, and concealed themselves in deserts and woods.

Caesar, having remained in their territories a few days, and burned all their villages and houses, and cut down their corn, proceeded into the territories of the Ubii; and having promised them his assistance, if they were ever harassed by the Suevi, he learned from them these particulars: that the Suevi, after they had by means of their scouts found that the bridge was being built, had called a council, according to their custom, and sent orders to all parts of their state to remove from the towns and convey their children, wives, and all their possessions into the woods, and that all who could bear arms should assemble in one place; that the place thus chosen was nearly the centre of those regions which the Suevi possessed; that in this spot they had resolved to await the arrival of the Romans, and give them battle there. When Caesar discovered this, having already accomplished all these things on account of which he had resolved to lead his army over, namely, to strike fear into the Germans, take vengeance on the Sigambri, and free the Ubii from the invasion of the Suevi, having spent altogether eighteen days beyond the Rhine , and thinking he had advanced far enough to serve both honor and interest, he returned into Gaul, and cut down the bridge.

During the short part of summer which remained, Caesar, although in these countries, as all Gaul lies toward the north, the winters are early, nevertheless resolved to proceed into Britain, because he discovered that in almost all the wars with the Gauls succors had been furnished to our enemy from that country; and even if the time of year should be insufficient for carrying on the war, yet he thought it would be of great service to him if he only entered the island, and saw into the character of the people, and got knowledge of their localities, harbors, and landing-places, all which were for the most part unknown to the Gauls. For neither does any one except merchants generally go thither, nor even to them was any portion of it known, except the sea-coast and those parts which are opposite to Gaul. Therefore, after having called up to him the merchants from all parts, he could learn neither what was the size of the island, nor what or how numerous were the nations which inhabited it, nor what system of war they followed, nor what customs they used, nor what harbors were convenient for a great number of large ships.

He sends before him Caius Volusenus with a ship of war, to acquire a knowledge of these particulars before he in person should make a descent into the island, as he was convinced that this was a judicious measure. He commissioned him to thoroughly examine into all matters, and then return to him as soon as possible. He himself proceeds to the Morini with all his forces. He orders ships from all parts of the neighboring countries, and the fleet which the preceding summer he had built for the war with the Veneti, to assemble in this place. In the mean time, his purpose having been discovered, and reported to the Britons by merchants, embassadors come to him from several states of the island, to promise that they will give hostages, and submit to the government of the Roman people. Having given them an audience, he after promising liberally, and exhorting them to continue in that purpose, sends them back to their own country, and [dispatches] with them Commius, whom, upon subduing the Atrebates, he had created king there, a man whose courage and conduct he esteemed, and who he thought would be faithful to him, and whose influence ranked highly in those countries. He orders him to visit as many states as he could, and persuade them to embrace the protection of the Roman people, and apprize them that he would shortly come thither. Volusenus, having viewed the localities as far as means could be afforded one who dared not leave his ship and trust himself to barbarians, returns to Caesar on the fifth day, and reports what he had there observed.

While Caesar remains in these parts for the purpose of procuring ships, embassadors come to him from a great portion of the Morini, to plead their excuse respecting their conduct on the late occasion; alleging that it was as men uncivilized, and as those who were unacquainted with our custom, that they had made war upon the Roman people, and promising to perform what he should command. Caesar, thinking that this had happened fortunately enough for him, because he neither wished to leave an enemy behind him, nor had an opportunity for carrying on a war, by reason of the time of year, nor considered that employment in such trifling matters was to be preferred to his enterprise on Britain, imposes a large number of hostages; and when these were brought, he received them to his protection. Having collected together, and provided about eighty transport ships, as many as he thought necessary for conveying over two legions, he assigned such [ships] of war as he had besides to the quaestor, his lieutenants, and officers of cavalry. There were in addition to these eighteen ships of burden which were prevented, eight miles from that place, by winds, from being able to reach the same port. These he distributed among the horse; the rest of the army, he delivered to Q. Titurius Sabinus and L. Aurunculeius Cotta, his lieutenants, to lead into the territories of the Menapii and those cantons of the Morini from which embassadors had not come to him. He ordered P. Sulpicius Rufus, his lieutenant, to hold possession of the harbor, with such a garrison as he thought sufficient.