The probability of neutralization (P_{N}) is the probability that
the response force will
successfully neutralize the adversary . It can be obtained from a variety
of sources, including data tables, tabletop exercises, computer war
games, simulated physical engagements, or actual engagements. For a
given scenario, P_{N} is
simply calculated using the following equation, where N_{engagements} is a
statistically significant number of engagements and N_{wins}is the number of
wins.

P_{N}
= N_{wins} / N_{engagements}