march through the Allobrogian
territory, gained a respite of fifteen days, which was employed
in breaking down the bridge over the Rhone at Genava, and barring
the southern bank of the Rhone against the enemy by an entrenchment
nearly nineteen miles long: it was the first application
of the system--afterwards carried out on so immense a scale
by the Romans--of guarding the frontier of the empire in a military point
of view by a chain of forts placed in connection with each other
by ramparts and ditches. The attempts of the Helvetii to gain
the other bank at different places in boats or by means of fords
were successfully frustrated by the Romans in these lines,
and the Helvetii were compelled to desist from the passage of the Rhone.

The Helvetii Move towards Gaul

On the other hand, the party in Gaul hostile to the Romans,
which hoped to obtain a powerful reinforcement in the Helvetii,
more especially the Haeduan Dumnorix brother of Divitiacus,
and at the head of the national party in his canton as the latter
wasat the head of the Romans, procured for them a passage
through the passes of the Jura and the territory of the Sequani.
The Romans had no legal title to forbid this; but other and higher
interestswereat stake for them in the Helvetic expedition than
the question of the formal integrity of the Roman territory-- interests
which could only be guarded, if Caesar, instead of confining himself,
as all the governors of the senate and even Marius(34) had done,
to the modest task of watching the frontier, should cross what had hitherto
been the frontier at the head of a considerable army. Caesar was general
not of the senate, but of the state; he showed no hesitation.
He had immediately proceeded from Genava in person to Italy,
and with characteristic speed brought up the three legions
cantoned there as well as two newly-formed legions of recruits.

The Helvetian War

These troops he united with the corps stationed at Genava,
and crossed the Rhone with his whole force. His unexpected appearance
in the territory of the Haedui naturally at once restored the Roman
party there to power, which was not unimportant as regarded
supplies. He found the Helvetii employed in crossing the Saone,
and moving from the territory of the Sequani into that
of the Haedui; those of them that were still on the left bank
of the Saone, especially the corps of the Tigorini, were caught
and destroyed by the Romans rapidly advancing. Th