Coming out of the desert, he said, big changes were in order. Evacuation or fleet hospitals had multiple operating rooms and hundreds of beds and were enormously expensive to move. This lack of medical mobility likely delayed the kickoff of Desert Storm by 30 to 60 days, Smith estimated.

"Casualty projections in the summer of 1990 were astronomical," he said. "Thousands of people on both sides would be wounded or killed. Iraq had the fifth largest military in the world, and this coalition (of nations allied with the United States) was at the end of a mighty long string. So, it was thought it might be a peer-on-peer, even-up fight. Now, it turned out the Iraqi military was big on paper but not big on training, and morale wasn't any good, and they mostly rolled over when confronted.

Still, some of the lessons learned were staggering. But teasing them out took longer than expected, other experts agreed.

"Since ground combat generated relatively few casualties, especially compared to what was anticipated, there were very few innovations in the practice of medicine as a result," said Alan Hawk, manager of historical collections for the National Museum of Health and Medicine at the Defense Health Agency. "However, the big lesson of the Persian Gulf War was that the medical footprint was way too large and too cumbersome to keep up with a rapidly moving front."

Because of the clear logistical problems, Smith said that things were undertaken in 1991 that were "not yet doctrine" but based on small conflicts from the 1980s, in Grenada and later Panama.

"In both of those [conflicts] we recognized that you could move smaller medical assets quicker," he explained.

For instance, Navy SEALs in Panama - just a year before the Gulf War - advanced high-level Special Forces medical care and learned to better stabilize patients. New techniques for transporting and using fluids and antibiotics were developed.

"Then they put [casualties] on an airplane and flew them to San Antonio, with no intermediate hospitals, and they survived," Smith said.

In the Gulf, "we didn't have enough patients get hurt to be statistically significant, but we did recognize that that system was not going to get patients on operating tables quickly," Smith said. "And the surgeons at those operating tables for the most part were not trauma surgeons."

One Army physician who served in the conflict who can identify with that statement is Dr. Leopoldo "Lee" Cancio, a retired colonel now serving as director of the U.S. Army Institute of Surgical Research Burn Center at Joint Base San Antonio-Fort Sam Houston in Texas. During the Gulf War, Cancio was a young Army captain, attached to the 82nd Airborne Division and only a few years out of medical school.

Smith said a challenge for the military 30 years ago was how to prepare doctors for downrange conditions when they were only accustomed to stateside care facilities. These days, some of the same concerns hold, he said, particularly for Reserve and Guard physicians, nurses, and medics.

"I was used to taking care of injured people, but I was used to doing so in a trauma center setting," Cancio said. "I didn't have much training at all in how to translate that into the field environment."

Trauma training for military and civilian doctors alike is still "intermittent," Cancio noted.

"So that is a challenge," he said. "What has definitely improved and totally transformed combat casualty care, pre-hospital, has been the concept of tactical combat casualty care."

Tactical casualty care was an application of the lessons learned based on data collected during the Vietnam War and analyzed with computers in the 1990s, Hawk noted. This resulted in the development of improved hemorrhage control techniques for use by EMTs and combat medics.

In the Gulf, Cancio took a course called Basic Trauma Life Support, which was designed for civilian emergency medical technicians. Other pre-hospital courses and trainings did gain traction eventually, Cancio said.

But it was tactical combat casualty care that "provided a set of priorities and a sequence of events for people taking care of combat casualties, whether they're under fire, or care en route, which really served as a foundation for everything that we now teach medics and general medical officers, physician assistants, etc., for the pre-hospital environment," Cancio said.

But it was tactical combat casualty care that "provided a set of priorities and a sequence of events for people taking care of combat casualties, whether they're under fire, or care en route, which really served as a foundation for everything that we now teach medics and general medical officers, physician assistants, etc., for the pre-hospital environment," Cancio said.

"Knowing what to do when someone is injured and you're being shot at is really important," he added.

The combat casualty is different from the average victim of a car wreck in the United States, Cancio said. The severity of something like losing one or both legs to an improvised explosive device is unusual stateside during peacetime.

"One of the important early changes on the battlefield was in how we resuscitate patients, both pre-hospital and upon arrival at a medical unit," he said.

To that end, Cancio noted that the availability and portability of blood products and blood transfusions have evolved much in the past 30 years, especially in terms of battlefield care. In addition, much of stateside general surgery these days is minimally invasive and done through scopes, he said. On the battlefield you still must make big incisions on large body parts like the abdomen. That's where additional trauma surgery training becomes vital for military-specific skills.

Likewise, egregious burns are not common peacetime injuries, but are to be expected in combat - something on the order of 5% to 10% of casualties, Cancio said. If you combine burns with a traumatic brain injury, or an amputation, you're talking about truly rare levels of care, and of training for the caretakers.

Coming next week: Part 2, which shows that not all battlefield life-saving measures improved since the Gulf War are highly technical.

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Continuing this summer:

(June): Part 2 of overview. (July): Advances in prosthetic limbs and quality of life after traumatic injury. (August): How 3-D printing is re-writing what's possible in post-traumatic care.