Pour compléter Guillaume :
Le RB indique en A12.14 :
# uses Non-Assault Movement [EXC: behind bocage (B9.55) or between connected trenches (B27.54)],
# moves/advances/withdraws into an Open Ground hex (as defined in 10.531),
Tu es dans le cas où tu "moves" dans l'Open Ground hex et en condition de FFMO (A10.531)
10.531 indique : "during a hypothetical Defensive First Fire opportunity (regardless of what attacks it actually made in previous phases), the -1 FFMO DRM.