I bought a Dragon 3571 1/35 Syrian T34/85 - The Six Day War and I just noticed the decals are the same as the Star Decals set I have

I now have two sets of the same decals and was wondering if the Syrian T-34/85 tanks used this particular marking only or were they used on other vehicles

There are a couple of widely-used photos of a Syrian T-34/85 from 1967 that were clear enough that everyone used them as source material for their decals, thus the duplicates. Some of the unit tactical markings were presumably used on other vehicles, but the slogan in Arabic was perhaps seen only on the turrets of tanks. I've seen a different slogan on the turret skirt of a Syrian Pz. IV in the Golan Heights in 1967.

Here is a short but interesting article:

https://www.flamesofwar.com/hobby.aspx?art_id=4394