Israeli naval forces intercepted and boarded all vessels from the Global Sumud Flotilla and related efforts in international waters roughly 250 nautical miles from Gaza during mid-May 2026, detaining hundreds of activists before any could approach territorial seas. This enforcement of the longstanding maritime blockade, consistent with prior operations, drove the near-certain trader consensus that no vessel would enter Israeli waters by the May 31 deadline. While the outcome reflects established patterns of interception far from the coast, a hypothetical undetected vessel or late regrouping could still have shifted probabilities, though no such development occurred within the resolution period.