LABIENUS' CAMPAIGN. SPRING, 52 B. C.
LABIENUS had been conducting a campaign against the Parisii. He reached Lutetia, but shortly heard of Cæsar's failure before Gergovia. He was opposed by Camulogenus, an able man, and saw that he could not safely retire, as he ought to do, towards Cæsar, without first imposing on the enemy. This he did in a bold and well-planned battle, and promptly retreated to Agendicum. The Æduan rebellion practically cut Cæsar off from his lieutenant; and Vercingetorix was all the more active since Cæsar's defeat at Gergovia. But by a bold march northward, Cæsar made a junction with Labienus, and thus reunited his eleven legions in one body. His manifest policy was now to push for the Province, from which he was cut off, reëstablish his base securely, and again advance on the Gallic allies. He set out by the most promising route. Vercingetorix believed the moment to have come for a coup de grace. He gave up his policy of small-war, and intercepted Cæsar on the way. But in the ensuing battle the Romans won, and Vercingetorix retired to Alesia, the last and main stronghold of the Gauls. This victory reopened Cæsar's communications with the Province, and he followed the Gauls to Alesia.
DURING Cæsar's Gergovia campaign Labienus had marched on Lutetia of the Parisii with four legions, having left a suitable force of new recruits from Italy with his baggage and victuals at Agendicum. He marched down the left bank of the Icauna (Yonne) and the Sequana. A large army from the neighboring states assembled to oppose him as soon as his arrival was known. The town of Lutetia occupied the island in the Seine where now stands Notre Dame de Paris. The chief command had been given to an aged but excellent soldier named Camulogenus. This officer, perceiving that Labienus was marching along the left bank, camped and drew up his army near a neighboring marsh. This was