US military officials addressed reports of potential "kamikaze dolphins" during early May 2026 Pentagon briefings tied to Iran-related tensions in the Strait of Hormuz, with Defense Secretary Pete Hegseth stating the military could "neither confirm nor deny" their existence while confirming Iran lacked such capabilities. The US Navy maintains a longstanding Marine Mammal Program focused on mine detection and harbor protection using dolphins and sea lions, but no official statements, leaks, or evidence emerged confirming suicidal attack training or deployment by the May 31 deadline. Traders assign near-certain probability to "No" because resolution requires explicit confirmation that did not occur amid routine denial of the concept and established program limits. Late disclosures from the Pentagon or credible primary sources after the cutoff remain the only realistic paths that could have altered the outcome before market resolution.