Sometimes a mistake will cause artillery rounds to fall short and this can endanger friendly units.
This is called "Danger Close".
The situation is almost the same as in the previous example. In addition to the
German mortar X and commander Y, there is a disrupted German infantry Z 2" away from the target
infantry A. The commander is attempting to bombard the American unit before it can
close and destroy his squad. However, he rolls an unmodified 10 in the call-for-fire
roll resulting in a "Danger close" situation (p.38). The attack against the target infantry
is resolved normally, but an additional template is placed along the direction of fire
that will attack the disrupted German infantry. This attack is modified as follows:
weapon rating 0
discipline rating +1
danger close attack -1
disrupted unit +1
for a net modifier of +1. A 9 is rolled on the danger close attack, knocking out the
German infantry.
There is no such thing as "friendly fire."