 He fought against the Pannonians under Tiberius, quelled the mutiny in the Rhine, and led three successful campaigns into Germania.As for his popularity, he was popular enough that the mutinous legions of the Rhine attempted to proclaim him emperor in AD 14; however, he remained loyal and led them against the German tribes instead.Tacitus and Suetonius claim that Tiberius was jealous of Germanicus' popularity, but Barrett suggests their claim might be contradicted by the fact that, following his campaigns in Germany, Germanicus was given command of the eastern provinces – a sure sign he was intended to rule.