Rechristianization of the Middle East

[Philippus Flavius Homovallumus]

Well, Lord Carey has called for Britain to help "Crush" ISIL in Syria, so the former head of the Anglican Church is clearly feeling his crusading arm twitching.

You're basically describing a Crusade though, because the reason Christians are leaving is anti-Christian violence, so you'd have to go to war and carve out a space for Christians through the use of violence, and then you'd have to hold it.

Hmmm.

We'd need to take Turkey first, it's a necessary strategic bridgehead and it'll get the Greeks onboard if they can move their capital from Athens to Constantinople and re-take Hagia Sophia. Then I'd recommend pushing down the Levantine coast, skipping over the Sinai and making an amphibious assault on Alexandria, from there we can retake the Nile Delta, destroy all the buildings the Egyptians have built on the floodplain and get the irrigation system sorted. After that I'd recommend committing two forces to go West from Egypt and East from Spain.

I reckon we could take back the whole lot in 20-50 years if the EU made a good, strong, collective effort towards Reconquest. It'd be a bit awkward to have Israel in the middle of Palestine though, and they have some important ports - we might have to absorb them.

wait...

It's still 900 AD, right?