The Soldiers in the containerized kitchen (CK) continued to prepare food without giving the alarm another thought. After all, why would it go off if there was no smoke or fire? Fast forward 30 minutes, and there is a mass casualty event at the Role 2. Eight Soldiers arrive complaining of headaches, nausea, dizziness and breathing difficulties. Seven of those are immediately evacuated to higher levels of care to combat the effects of carbon monoxide (CO) poisoning.