Comment Power and Influence (Score 2) 228
Any beef with each other? Did you miss anything? Yes, absolutely!
There's certainly the external threat from Iran, and the Shi'a population in many of the countries are less than happy with their Sunni rulers. Did I mention Iran? They're quite protective of Shi'as; be it during the recent uprising in Bahrain or the current war in Yemen [on Saudi Arabia's border]. There's always the threat of homegrown terrorists who wish to establish a theocratic state (Sunni). Saudi Arabia has been battling its own extremists for years now. Iraq already attacked Kuwait once and wanted to move on Saudi Arabia. Today Iraq is mostly a threat because of instability.
However you seem to have missed the real point of the GCC's plan; to come together and create a confederation for economic and social development. They're not banding together because of threats - they're planning ahead. How long will the oil last? What do they live off afterwards? They have to develop their economies, industries, educate and train the population and be less reliant on foreign workers [from Asia and the West].
As for India and Pakistan, that's not their problem as those are Asian countries. Israel is obviously not loved by the GCC countries.