The campaigns of this year being ended, the legions were sent into winter quarters among the Sequanians under Labienus, the lieutenant of Caesar. He himself went into Cisalpine Gaul to attend to his duties as administrator, and to have communication with his friends at Rome. THE WAR WITH THE BELGAE. While Caesar was in Hither Gaul, he learned from Labienus that the BELGAE were forming a league to resist the Romans. This people occupied the northeastern part of Gaul, and embraced several tribes, of which the principal were the REMI, BELLOVACI, SUESSIONES, and NERVII. The last were the fiercest and least civilized. Caesar raised two new legions, making eight in all, and marched against the Belgae as soon as the spring opened. His sudden approach alarmed the Remi, who lived nearest to Central Gaul, and they immediately put themselves under his protection. From them he learned that the Belgae could muster about 300,000 men. By skilful tactics and a successful attack he put to flight and nearly annihilated the Suessiones. The Bellovaci now put themselves under his protection, but the Nervii remained in arms. One day, while the six legions were forming camp on the bank of the river Sabis, the Nervii and their allies suddenly rushed upon them from an ambuscade in the woods on the opposite bank. The troops were entirely unprepared, and so quick was the enemy's charge that the Romans had not time to put on their helmets, to remove the covering from their shields, or to find their proper places in the ranks. Great confusion followed, and they became almost panic-stricken. Caesar rushed into their midst, snatched a shield from a soldier, and by his presence and coolness revived their courage. The Nervii were checked, and victory was assured. But the enemy fought on with a bravery that excited the admiration of Caesar. Of sixty thousand men scarcely five hundred survived. The women and children were cared for kindly by Caesar, and settled in their own territory. The Aduatuci, who had assisted the Nervii in their struggle, were conquered by Caesar and sold into slavery. Thus ended the Belgian campaign (57). The legions were put into winter quarters near where the war had been waged, and Caesar went to Italy. In his honor was decreed a thanksgiving lasting fifteen days. THE VENETI.--INVASION OF GERMANY.