In NWOL, units without supply lines, except those in besieged forts,
will lose deserters. A unit which is able to requisition supplies loses
1% to 4% of its strength as deserters. A unit which is not able to
requisition supplies loses 3% to 9% of its strength. The number of
losses is then modified as follows:
Quality
Excellent
50%
Very Good
25%
Good

Average
+25%
Fair
+50%
Poor
+75%
Very Poor
+100%
Morale
100
75%
75
37.5%
50

25
+37.5%
0
+75%
For other morale levels, interpolate linearly. For example, morale of
60 is 1/5 of the way from 50 to100, so the bonus is 1/5 of 75%, which
is 15%.