Complex sentence: Some historians assert that Acinipo was created after the battle of Munda (45 BC), fought between the armies of Julius Caesar and the army of Pompey's two sons, Gnaeus and Sextus.
Split into simpler sentences: Some historians assert that Acinipo was created after the battle of Munda (45 BC). Munda was the site of a first century BC clash between the armies of Julius Caesar and the army of Pompey's two sons, Gnaeus and Sextus.