Iran War engulfs GCC: Do US, Israel, and GCC have enough aerial interceptors?

• With no reason to trust US or Israel, Iranian regime leadership (irrespective of Khamenei death) will continue fighting

• Iran tactic to expand conflict to GCC is having a disruptive effect but is pushing GCC from neutral to closer to the US

• If Iran expends all its ballistic missiles, it might stretch US, Israel, GCC aerial interceptors (eg THAAD) to the limit

  
  

After a day of the new US-Israel Iran War, at the time of writing, there is extensive damage and death in Iran, including Supreme Leader Khamenei and the leaders of the Iranian Revolutionary Guard Corps, regular military, ministry of defence, extensive disruption from retaliatory missile strikes in the GCC (eg airport and port closures Dubai et al). The Saudi Tadawul index opened down 4.5%, before partially recovering to down 2.2%.

The US-Israel Iran War is unlikely to end swiftly. The existential nature of the conflict for the Iranian regime, given the maximalist mission statement of the US and Israel (but the unwillingness or inability to put boots on the ground), and the absence of any grounds for trust between the warring parties (and the absence of any credible mediator) means this war, with expanded geographical impact, could go on substantially longer than the 12 Day War of 2025.

In this context, the relative supplies of aerial defence equipment on the side of the US, Israel, and the GCC states caught in between, and drones and missiles stockpiles and launch facilities on the side of Iran will determine how long the war continues and how extensive is the damage. The geographic extent of disruption and damage has already far exceeded that seen in the 12 Day War of 2025.