force multiplier

In military science, force multiplication or a force multiplier is a factor or a combination of factors that gives personnel or weapons the ability to accomplish greater feats than without it. The expected size increase required to have the same effectiveness without that advantage is the multiplication factor. For example, if a technology like GPS enables a force to accomplish the same results as a force five times as large without GPS, then the multiplier is five. Such estimates are used to justify the investment for force multipliers.