Staff Sgt. Lionel Semon and Sgt. Rolando Fender, assigned to the Airborne and Ranger Training Brigade drag an injured Soldier out of harms way during the tactical combat casualty care (TC3) lane.

Sgt,Jonathan Zorn, U.S. Army Alaska, chops through the simulated skin of a downed helicopter to rescue an injured Soldier

Staff Sgt.Lionel Semon, assigned to the Airborne and Ranger Training Brigade, climbing up the side of a cliff.

Dressed in WWI period uniform, Staff Sgt.Clint McKinley, AMEDDC&S, dressed in WWI period uniform, briefs Capt.Stona Jackson, 1LT Marco Presichi, Regional Health Command – Europe, on the DNBI / Orienteering lane.

Avoiding simulated enemy fire and a chemical gas attack, Sgt. Rolando Fender from the Airborne and Ranger Training Brigade makes his way towards an injured Soldier while at the chemical, biological, radiological and nuclear (CBRN) defense lane. Photo by Jose E. Rodriguez, AMEDDC&S

While wearing Mission Oriented Protective Posture (MOPP) Level 4 gear, Sgt. Brett Reynolds and Sgt. Daniel Martin from the 1st Infantry Division treat a simulated chemical attack victim.

Sgt.Daniel Martin from the 1st Infantry Division low crawling though simulated wire during the chemical, biological, radiological and nuclear (CBRN) defense lane.

Lt Gen. Nadja Y. West, Surgeon General of the U.S. Army and commanding general, U.S. Army Medical Command, with Scott C. Woodard Historian, Office of Medical History, at the World War I medical first aid station. The theme for this year's competition was World War I with cadre members operating the lanes dressed in period uniforms.