Iran Doesn't Have 'Kamikaze Dolphins,' Hegseth Says. But Marine Mammals Have a Long History of Military Use
Several countries, including the U.S., have a history of using dolphins in conflict areas, though not as weapons.

TL;DR
- Several countries have used dolphins in conflict areas.
- The U.S. is one of the countries with a history of this practice.
- Dolphins have not been used as weapons in these military applications.