 In Germany, the legions in mutiny were those of the Lower Rhine under Aulus Caecina (the V Alaudae, XXI Rapax, I Germanica, and XX Valeria Victrix).The army of the Lower Rhine was stationed in summer quarters on the border of the Ubii.They had not been paid the bonuses promised them by Augustus and, when it became clear a response from Tiberius was not forthcoming, they revolted.