The Iranians ended the American security umbrella with ballistic missiles.
A professor from New York University in an interview with the Telegraph: The base in Bahrain and the Al Udeid base in Qatar - the largest American bases in the region - were completely destroyed. The Iranians had very accurate information and with precision ballistic missiles and drones they ended the American security umbrella.
I think the Persian Gulf countries will quietly make their own separate agreements with the Iranians and be less dependent on the US.