Saudi Arabia bans US military aircraft by May 31?

This market will resolve to “Yes” if Saudi Arabia officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are not allowed to use certain military bases within Saudi Arabia, by the specified date, 11:59 PM ET. Otherwise, this market will resolve to “No”. A restriction applying only to a subset of U.S. military aircraft, such as only aircraft involved in a specified U.S. military operation, will qualify. A qualifying restriction must be a standing policy; isolated instances of access denial will not count. A consensus of credible reporting that Saudi Arabia has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. The primary resolution source for this market will be official information from the government of Saudi Arabia; however, a consensus of credible reporting may also be used.

Source: official resolution criteria from Polymarket. Always verify on the source page before trading.