During one of these operations, in Dasht-e-Archi district, a combined American and Afghan team had just stepped off the helicopters when Taliban machine-gun crews opened fire. Our soldiers responded without hesitation, killing several enemy fighters and capturing a Taliban machine gunner. At that moment, the team leader radioed me. He was suddenly confronting a scenario that every Green Beret officer prepares for during the Special Forces Qualification Course: His foreign counterpart was about to commit a war crime.