Scenarios about 'battle of allia'

The Battle of Allia was a pivotal military engagement in 390 BCE (or 387/386 BCE by some accounts) where Gallic forces decisively defeated the Roman army near the Allia River. This catastrophic defeat left Rome vulnerable to the subsequent Gallic sack of the city, marking one of the most traumatic events in early Roman history and influencing Roman military reforms. In alternate history scenarios, the battle represents a critical turning point where different outcomes could fundamentally alter the development of Roman power and Western civilization.