Given the speed of modern warfare coupled with the near absence of a true front line an answer to improving survivability was needed by the United States<unk> 
The solution was a two-pronged approach
life and limb saving damage control surgery/intervention close to the point of injury
Movement of casualties out of austere environment to definitive care quickly
Utilizing cargo aircraft of opportunity movement of stabilized patients from tactical environment to definitive care occurs in as little as two to three days under the current US<unk>  system
Military aeromedical evacuation
Field trauma triage
Post cardiac arrest care
Care under fire
Emergency Medical Treatment and Active Labor Act
Tactical field care
Tactical evacuation care
ICU sedation