I was taught by a former US Army nurse who served at Pleiku than many if not most TK's used during Vietnam conflict were medically unnecessary. Maybe battle-hasty expedient.
(I thought they rejected the built-in TK uniforms years ago?).
Public Radio article said yesterday they now have a TBI "center" at KAF (Afgahnistan/ Kandahar). Now use multiple versions of TBI eval cards because troops were memorizing them!
Some approaches are later found not to be panaceas, like clotting agents.
At Kandahar, the biggest inroads I saw were mandatory hand washing before dining, and hand washing means available at toileting facilities. As well as disposable utensils and plates, and real live sewage and trash/garbage control, and bottled water in sanitary packaging.
R.O.T., 85% of war casualties are disease and accidents.
If you are interested, when I was researching medical issues there, I read something that said most of the Russian casulaties were from disease and public health issues.