force multiplication

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

https://en.wikipedia.org/wiki/Force_multiplication