"Dustoff inbound" was the message crackling over the radio that troops wounded in Vietnam most wanted to hear.
The message using the "Dustoff" call sign meant that an unarmed UH-1 "Huey" helicopter air ambulance with a red cross painted on the nose was coming for them no matter the weather, no matter whether the landing zone was "hot," no matter whether there even was a landing zone -- some 8,000 hoists while the aircraft hovered were conducted during the war.
-Alemaster