of those of the
Vanni, he was under the necessity of bringing some from the south coast of
Gaul, and other parts of the Mediterranean Sea; he also collected all the
experienced pilots he could meet with, who were acquainted with the coasts,
and with the management of such ships, and exercised a sufficient number of
men at the oar, to navigate them.

These preparations were all indispensably requisite; for in the battle
which ensued, the Vanni and their allies fought their ships with a skill
and a valour of which the Romans had not had any previous example; and they
would certainly have been beaten, if they had not, by means of sharp
engines, cut the ropes and sails of the hostile fleet, and thus rendered
their ships unmanageable: in this state they were easily and speedily
captured. As the Vanni had on this occasion mustered all their forces,
their defeat put an end to their resistance, and removed Caesar's principal
obstacle to the invasion of Britain.

The motives which induced Caesar to invade Britain can only be conjectured,
if, indeed, any other motive operated on his mind besides ambition, and the
love of conquest and glory; stimulated by the hope of subduing a country,
which seemed the limit of the world to the west, and which was in a great
measure unknown. He was, probably, also incited by his desire to punish the
Britons for having assisted the Vanni; and Suetonius adds, that he was
desirous of enriching himself with British pearls, which were at that time
in high repute.

Before he undertook this expedition, which, even to Caesar, appeared
formidable, he resolved to learn all he could respecting Britain. For this
purpose, he collected the merchants who traded thither from all parts of
Gaul; but they could afford him no satisfactory information. They had
visited only the opposite coast of Britain; of the other parts of the
country, of its extent, its inhabitants, &c., they were utterly ignorant.
Under these circumstances, therefore, he sent one of his officers in a
galley, who, after being absent five days, during which however he had not
ventured to land, returned to Caesar, and acquainted him with the little he
had observed.

Caesar resolved to invade Britain immediately: for this purpose, he ordered
eighty transports to take on board two legions; and the cavalry to be
embarked in eighteen more, at a port a few miles off. The enterprize was
attended with considerable difficulty, from the opposition of th