Unfortunately (for the moment), as I have written many times, we Arabs are divided into far too many countries and regimes (20 +). This makes genuine unity and "speaking with one tongue" extremely difficult. Especially when many of the regimes in power are not serving the interests of the Arab people and the Arab world as a whole. This fragmentation is also taken advantage of by the West (US in particular), Israel and even regional countries. All part of geopolitical power games.
Sykes-Picot played a role in this but already prior to that the fragmentation had occurred.
Many are not aware of this but actually all the current ruling families in the GCC, had ruled prior or the same states prior to WW1. For instance for the past 300 years there have been various Saudi states (ruled by the House of Saud) some encompassing most of Arabia (minus Yemen) and even parts of Southern Iran.
View attachment 148095
Same with the Al Bu Said ruling dynasty in Oman that used to control this territory not long ago, including Gwadar in Pakistan that was sold.
en.wikipedia.org
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In fact the youngest ruling family, from what I recall, are the Al-Thanis in Qatar which began some 200 years ago.
Anyway I agree fully with you and I have always said that the emergence of those GCC states as independent states (not historical regions or federal entities for instance) is by design and unnatural.
And we have evidence of this being the case because some of the first UK (KSA itself was never colonized by Westerners or anybody else for that matter but nearby areas were and substantial parts of Arabia were), Royal Air Force to be precise, engagements against Muslims in history, were against the Ikhwan (Saudi Ikhwan not the Muslim Brotherhood Ikhwan that later appeared in Egypt), when they tried to invade/conquer Transjordan and Iraq that had just fallen into the sphere/control of the British Empire prior to WW1 or just after.
en.wikipedia.org
There were also raids on Iraq and Kuwait that were suppressed by the British Air Force and local regimes/rulers.
We also saw this for the entire world to see when Saddam (Iraq) invaded Kuwait and had an idea of invading all of Eastern Arabia and thus laying claim on most of the world's oil and gas.
https://en.wikipedia.org/wiki/Eastern_Arabia
The main global power (USA) did not want that obviously.
But if you ask me and as I have argued in other threads, those small GCC states will organically reunify with the rest, because long-term their existence as truly independent states cannot be guaranteed. Regardless of the political landscape and type of rule.
It is a complex situation and not something that is likely to be "solved" overnight.
Any way formal unification is actually not needed if just the GCC, Arab League, OIC etc. could turn into an EFFECTIVE EU-like movement or NATO-like movement, many of the challenges could be solved.
Any way, I wrote about this topic in this thread (page 3) for those interested, as it is not really too relevant for this thread which is about KSA and Pakistan