The problem here is the war situation. Soldiers in this environment simply do not have the luxury of just being "off sick" like the rest of us.
The recommended treatment is just to let nature take its course, hardly practical when fighting a war.

Occasional strains are resistant to ALL antibiotics currently available, including second-line aminoglycosides, such as amikacin, and extended
spectrum cephalosporins. Recommended therapy is- when possible and prudent- to withhold antibiotics and allow the patient to recover.

There are many factors here. Unsanitary conditions certainly will not help, but then nor will having to carry on fighting, possibly taking unsuitable
antibiotics in an effort to fight the disease, but in reality, only helping the organism to build up its drug resistance.
From here
Link
Mod Edit: Reduced the size of the link
[edit on 11/19/04 by FredT]