The evacuation syndrome is the paradox of combat psychiatry. A nation must
care for its psychiatric casualties, since they are of no value on the
battlefield indeed, their presence in combat can have a negative impact on
the morale of other soldiers and they can still be used again as valuable
seasoned replacements once they've recovered from combat stress. But if
soldiers begin to realize that insane soldiers are being evacuated, the
number of psychiatric casualties will increase dramatically. An obvious
solution to this problem is to rotate troops out of battle for periodic
rest and recuperation this is standard policy in most Western armies - but
this is not always possible in combat. Proximity or forward treatment
and expectancy are the principles developed to overcome the paradox of
evacuation syndrome. These concepts, which have proved themselves quite
effective since World War I, involve (1) treatment of the psychiatric
casualty as far forward on the battlefield as possible that is, in the
closest possible proximity to the battlefield, often still inside enemy
artillery range and (2) constant communication to the casualty by
leadership and medical personnel of their expectancy that he will be
rejoining his comrades in the front line as soon as possible. Lt. Col.
Dave Grossman, On Killing
http://tipyomi-sender.appspot.com/showtip/Sheepdog%20Tip%20of%20the%20Day/After%20Combat/109