An interesting challenge. Post WWII is not terribly well covered, much less this part of the world. I have a vague memory of a single large figure representing the Arab Legion and a camel but, not much else.
You may need to convert a little there are some WWII US/British/Russian Army and 1950's Foreign Legion which might work for the 40s and 50's. On the other hand in the 'vast' world of flats it would not be surprising if there is not something available.
Good luck!
mark