“Launched in October of 2015 by the White House, Stop the Bleed is a national awareness campaign and a call to action. Stop the Bleed is intended to cultivate grassroots efforts that encourage bystanders to become trained, equipped, and empowered to help in a bleeding emergency before professional help arrives.
No matter how rapid the arrival of professional emergency responders, bystanders will always be first on the scene. A person who is bleeding can die from blood loss within five minutes, so quickly stopping the bleeding is critical. Those nearest to someone with life threatening injuries are best positioned to provide immediate care if they are equipped with the appropriate training and resources.”

https://www.ems.gov/projects/stop-the-bleed.html