U.S. Senator John Cornyn (R-TX) introduced a bill Monday to award the Congressional Gold Medal to an elite group of Vietnam veterans who were part of 'dust off' crews that flew unarmed air ambulances into war zones to rescue injured military members and give them critical care.

"Vietnam-era 'dust off' crews saved more than 900,000 lives while performing what is widely considered the most dangerous job in one of history’s deadliest conflicts,” Sen. Cornyn said in a press release. “Their remarkable story started in Texas, where these heroic pilots were trained to fly at Fort Wolters in Mineral Wells and Fort Sam Houston in San Antonio. I’m proud to honor these heroes with a bill that recognizes the full extent of their sacrifice and profound impact on so many lives.”

Several organizations support the bill, including the Retired Enlisted Association, Military Order of the Purple Heart, the U.S. Army Warrant Officers Association, and the American Legion. The legislation had eight bipartisan cosponsors, as of Tuesday.