Basing your foreign policy on an centuries old struggle in no surprise causes chaos. Iranian regime and its supporters can only justify their foreign policy by making argument for Shia Islam. They try to make argument that Shia Islam is the true Islam but they have no proof of that and uncertain. Both sides will make their cases. But, nevertheless they base their policies off this argument. So they are either right or not. It's very dangerous policy because humans will try to measure who is right simply by who prevails with their policies when it is rather an theological debate.
So same thing with ISIS, they made argument that they are right and expanded into two countries and tried using that fact to support their argument. Few years later they are nothing. Iran regime and their supporters(on this forum) make same case that they are on right path because of Iran's recent successes in exporting the revolution. And because they can produce their own weapons and maintain their infrastructure relatively well(as if no other country can, but we are supposed to worship Iran according to you guys for that). And all of these have nothing to with theology.
So now we are on brink of war in the region with unpredictable consequences. If Iran and its supporters defeat Saudi Arabia in the beginning(which they will), and invade Saudi Arabia, they will go crazy on this forum and claim Allah is supporting them and they are following true path(again nothing to do with theological debate). Then when they face counter attack and lose their gains, they will just disappear and say Allah is testing them or what not. People like that don't follow Islam and don't have straightforward core beliefs. And they trying to determine who is righteous and who isn't based on their stated ambitions and how they achieve them. When they don't understand that God is self sufficient and doesn't need them for anything. And God values the Prophet's who didn't value these worldly things and instead focused on ethics/character and worshipping God and recognizing that the end result is he created us and we return to him. And thus they are highest ranked in his eyes.
We can see from this why these kind of mentalities for these regimes and their supporters are flawed and should not be relied upon as truths.
Seems to me like Kuwait and some lack of vision by Arab states caused all of this. Tiny irrelevant Kuwait has always been mad at Iraq, Saudi Arabia instead of showing Kuwait its place played along and the Arab world pushed Iraq close to Iran. The GCC had a neighbouring Arab state fully militarised blocking Iran, irrelevant Kuwaiti policy removed that entirely.
Saddam is flawed, Iran is flawed, GCC is flawed, Egypt is flawed, none of them alternative. Only Islamic rule and establishing Caliphate in Arab world is alternative. Arabs are not forcing Iranians or Turks to get on with that program. Arabs want it for themselves it will happen soon. Iranians having problem with that means they want to subjugate region under their mercy and have everyone become an Iranian client state. And employ them 24/7 to enrich Iran and improve its regional standing. They don't believe in power sharing. And no wonder everyone is vehemently opposed to them.
Only thing Arabs can agree on is a Caliphate. Once they realize this and look towards God and pray to him to guide them, he will send them a righteous man to lead them. This is his promise in the Quran and to Prophet Mohammed(SAW).
As for everything else and all other programs in the region, my curse is upon them and I pray God keeps them alive until the last hour so they experience its horror.
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No offense to you Shia Arabs btw, but you are minority among Arabs and the decision to establish Caliphate is for the Sunni majority. And those who don't like that can move to Iran. I don't mean that in bad way, maybe they just have different philosophy on life and shouldn't endure psychological torture if they don't like Islam. I'm fine with Shia but not with the kind of Shia who want to subjugate us under Iran and be 24/7 employees for to them to enrich them.