Indeed. I've learnt more about the interwar period in this area since this all kicked off. Previously I'd though the Palestinian displacement was all post-WW2, but that's just when it escalated massively and Israel's statehood was declared.

The British took control of the area post-WW1 and the fall of the Ottoman Empire (Turks). Jewish immigration started in the following decade. This was already causing conflict, and there was a partition plan which the British (by my reading) were against. I think the British saw the forced displacement of people already there as something which they didn't want to police. The plan went ahead and the British handed over control (Peace-out!). Then WW2 happened and migration soared for obvious reasons. The effect was more displacement, more enclaves, and the eventual creation of the nation of Israel, all whilst the Palestinians weren't recognised as a nation of their own.

A couple of brief wars with their neighbours later and Israel has grown again encircling Gaza. Fast forward through a ton of conflict to today.