Complex sentence: After two years of war, in the summer of 8 CE Baton the Breucos surrendered his forces to Tiberius on the bank of the Bosnia river, but soon after he was captured by Baton the Daesitiates, whose assembly put the Breucos leader to death.
Split into simpler sentences: After two years of war, in the summer of 8 CE, Baton of the Breuci surrendered his forces to Tiberius on the bank of the Bosnian river. Soon afterwards, he was captured by Baton of the Daesitiates, whose assembly put the Baton of the Breuci to death.