By the mid 1st century AD, between eight and ten Roman legions were stationed in Roman Germania to protect the frontiers. Many of the soldiers of these Roman legions were Germanic. From 69–70 AD, Roman Germania was heavily affected by the Revolt of the Batavi. Tacitus writes that the leader of the revolt, Gaius Julius Civilis, recruited a vast amount of warriors from his self-described "kinsmen" all over Germania, and hailed Arminius for having liberated Germania from slavery. Civilis' rebels seized Colonia, capital of Roman Germania and home of the Germanic Ubii, who according to Tacitus were considered traitors by other Germani for having "forsworn its native country". After initially seeking to raze all of Colonia to the ground, the forces of Civilis declared the city returned "into the unity of the German nation and name" and "an open city for all Germans". Although initially declaring the rebels and "other Germans" their "kinsmen by blood", the Ubii eventually assisted the Romans in recapturing the Colonia.