The United States aims to advance a regional missile shield goal through defense meetings in Riyadh. This comes after Israel's successful defense against Iranian missiles. Gulf allies' confidence in U.S. defense support is uncertain, with doubts on defense integration. The May 22 U.S.-Gulf Cooperation Council meeting will address challenges including Yemen's Houthi attacks. Concerns also include intelligence sharing reluctance and equipment purchases alignment with U.S. standards for integrated air and missile defense.