I think the problem is that Iraq gets a Persia goal, not Unite Arabia. I mean... semantics, but it's a little different for me role-play wise.
Yeah, I don't think you need Iran and Afghanistan, I'm not at home to check. But I wanted Iran and Afghanistan because I am able to quickly take Iraq, Yemen, and Oman, so quick that war hasn't really broken out despite the coalescing factions. So my idea was to keep my country on a war footing and grab additional factories and manpower etc.
But you put me onto something there. With Iran and Afghanistan, I end up with a border against India, Sinkiang, and whatever flavour of Russia is in the north. This created problems for me after declaring on the Allies, as both India and Russian Federation joined in. Maybe having a little buffer would be good. Would it be at all helpful if Iran and Afghanistan entered into a new faction with me?
Rail connections were definitely a priority for me, supply throughout Arabia is horrible. In fact, for the war against the Allies, I was surprised by how crippling it is to cut off their rail lines (I'm relatively new to HOI4).
For me, both France and UK were considerable problems in Suez/Syria/Lebanon. It was late, like 1948 by that stage though. Takes almost a year to justify wargoals in some situations, and I can't do them too soon or they time out and I suffer a huge stability penalty. There was no Italy in North Africa either, so I think that opened them up. Taking their scattered parts of Arabia was easy, but the thing that really killed me was lack of equipment and manpower. I just didn't have enough divisions to both attack Syria and Suez, as well as defend mainland Arabia from UK naval invasions, AND hold off the Russians and Indians.
Maybe I'll have another crack at it.