This is driving me nuts. I remember reading somewhere about a Palestinian 'Arab' and Jewish settler who had both served in the same unit of the British Army during WWII, and post-war they ended up facing against each other for their respective causes. I forget if it would've been in 1948 or later.
I've gone back and checked through a bunch of my sources and bookmarks, but haven't been able to find it. I've also tried searching, but in doing so the closest I can find to Palestinian 'Arabs' serving in the British Army in WWII is the article in pic related (and the earlier Hebrew version by the same author), which makes no mention of the anecdote I'm after.

It's seriously driving me nuts, because I usually take notes and make bookmarks for everything, but apparently not this. Closest I can find to anything related I saved is that I bookmarked this Wikipedia page for a Palestinian who served with the British in WWII, then went on to fight in the Six-Day War,
https://en.wikipedia.org/wiki/Wajih_Al_Madani
But I can't find where I first learned of him; likely because Arabic names have 1,000,000 different spellings.