Keywords: 110203-N-FW104-282 (5453979930).jpg U S Navy Hospital Corpsman 1st Class Michael Astorga crawls through a mud pit during a tactical combat casualty care field exercise at Naval Medical Center San Diego Feb 3 2011 The exercise was a predeployment requirement and trained the Sailors on how to manage common battlefield combat injuries DoD photo by Mass Communication Specialist 3rd Class Samantha A Lewis U S Navy/Released https //www flickr com/photos/39955793 N07/5453979930/ 110203-N-FW104-282 2011-02-04 18 00 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/5453979930 2016-09-03 15 11 14 United States Government Work Hospital Corpsman Naval Medical Center San Diego Tactical combat casualty care |