Another one framing the narrative as "these fucking Jews turned up out the blue and turfed these peaceful Arabs out at gunpoint". It makes a great story but it's plain, fucking wrong.
Let's reframe your analogy slightly therefore to make it more accurate.
Let's say Manchester & Birmingham were one territory, called Mercia for example, with two different tribes. The UK parliament votes to split Mercia and call one part 'Manchester' and the other 'Birmingham'.
Manchester is happy with that but Birmingham isn't and attacks Manchester. Not only that, they get Yorkshire, Northumbria and Wales to join in with them. Their intention is to wipe Mancunians out and throw them off the territory.
Against the odds Manchester holds out and even turns the tables somewhat, ending up in control of places like Stoke & Stafford. Some of those residents are forced out but others make their own decision to leave and decamp to Wolverhampton.