«The Alamanni.» «The _Limes_, or '_Pfahlgraben_.'» Further, it should be remembered that in the third century offshoots from the Alamanni and the Franks attempted to spread themselves over the country on the Gallic side of the Rhine, assuming, during periods of Roman weakness, a certain independence and even over-lordship, so that Probus found sixty cities under their control. Probus completely reduced them once more into obedience, and again made the Roman authority supreme over the 'Agri Decumates,' and Rhætia as far as the 'Limes.'[406] [p283] A few years before, Marcus Antoninus, after he had conquered the Marcomanni in this district, had deported many of them into Britain.[407] «Forced colonisation in Britain and Belgic Gaul.» Probus followed his example, and deported also into Britain such of the Burgundians and Vandals from the 'Agri Decumates' as he could secure alive as prisoners, 'in order that they might be useful as security against revolts in Britain.'[408] «Of _Læti_ in Belgic Gaul and the Moselle Valley.» He also colonised large numbers of Germans in the Rhine valley (where he introduced, it is said, the vine culture), and some of them in Belgic Gaul. In his report to the Senate he described his victory as the reconquest of all Germany. He boasted of the subjection of the numerous petty kings, and declared that the Germans now ploughed, and sowed, and fought for the Romans. And, as he himself had deported Germans into Britain, his words cover the British as well as the Gallic and German provinces.[409] This victory over the Alamannic tribes and colonisation of them in Britain and Gaul, by Probus, was in A.D. 277. Very soon afterwards the same policy was again followed in dealing with the Franks, who were plundering and depopulating the Belgic provinces of Gaul further to the north, and ravaging the coasts of Britain. [p284] In 286, Carausius, who was put in charge of the Roman fleet, and whose business it was to guard the Gallic and British shores infested by the Saxons and Franks, revolted and proclaimed himself Emperor, defending himself successfully against the Emperor Maximian, and leaguing himself with the Franks and Saxons. In 291, Maximian, after directing his arms against the Franks, deported a number of them and settled them as læti on the vacant lands of the Nervii and Treviri, in Belgic Gaul and in the valley of the Moselle.[410] «Further deportations of Franks, Frisians, and Chamavi.»