And . . .
for SOME individuals
in SOME contexts . . .
. . . particularly those who are loathe to put legs to their prayers . . .
that would be quite accurate.
However a study of the effects of prayer and of calling on the God of Abraham, Isaac and Jacob in the Revolutionary War and all the wars since
would indicate quite abundantly that prayer has often been associated with miraculous changes on the battle front—many times, saving the day and many lives and the cause entirely.
Prayer and fasting?
D-Day comes to mind.