C. Julius Caesar, Gallic War

The day following Caesar sent Labienus, his lieutenant, with those legions which he had brought back from Britain, against the Morini, who had revolted; who, as they had no place to which they might retreat, on account of the drying up of their marshes (which they had availed themselves of as a place of refuge the preceding year), almost all fell into the power of Labienus. In the mean time Caesar's lieutenants, Q. Titurius and L. Cotta, who had led the legions into the territories of the Menapii, having laid waste all their lands, cut down their corn and burned their houses, returned to Caesar because the Menapii had all concealed themselves in their thickest woods. Caesar fixed the winter quarters of all the legions among the Belgae. Thither only two British states sent hostages; the rest omitted to do so. For these successes, a thanksgiving of twenty days was decreed by the senate upon receiving Caesar's letter.