Original sentence: His youth and apparent inexperience prompted many of the southern Greek, and neighboring 'barbarian' states to renounce Macedonian hegemony, but with prompt action and a demonstration of force, Alexander was able to cut short the rebellion of the southern Greeks, and reconfirm his hegemony
Edited sentence: His youth and apparent inexperience prompted many of the southern Greek, and neighboring barbarian states to renounce Macedonian hegemony, but with prompt action and a demonstration of force, Alexander was able to elliminate any idea of rebellion among the southern Greeks, and reconfirm his hegemony