Question: What is the ethnicity of the terrorist killed in a raid led by stealth helicopters in May 2011?
Sentence (from "Stealth helicopter"): A raid on the compound of Osama bin Laden in May 2011 utilized what appeared to be two Sikorsky UH-60 Black Hawks, heavily modified for quieter operations and employing stealth technology to be less visible to radar.
Relevant evidence: Yes