US officials reportedly informed Gulf leaders they would be invited to a meeting in New York to discuss what, according to September 2026 reports?

Explanation: According to Axios, Trump was expected to meet leaders from all six Gulf Cooperation Council states, plus possibly other Arab and Muslim leaders, in New York the following Tuesday to discuss American proposals for a postwar strategy regarding Iran. The State Department reportedly sent initial invitations in mid-September 2026, signalling that Washington was beginning to plan for the aftermath of the conflict even while active fighting and diplomatic uncertainty continued in both Iran and Yemen.