Simplify the following text for a Grade 9 native English-speaking person.
Original: Arriving in Etruria in the spring of 217 BC , Hannibal decided to lure the main Roman army under Flaminius , into a pitched battle , by devastating the region Flaminius had been sent to protect .
Simplified: Arriving in Etruria in the spring of 217 BC , Hannibal decided to lure the main Roman army led by Flaminius into battle .