the.com/firepower

means The amount of destructive force—measured in weapons, ammunition, or capability—that a military unit, weapon system, or nation can bring to bear.

from A straightforward 20th-century compound of 'fire' (as in weapons discharge, a sense of 'fire' dating back to early firearms) and 'power.' It emerged from military and artillery terminology in the early 1900s, formalizing a way to quantify combat strength, and later drifted into general use for any overwhelming capacity to act forcefully — a boxer's punch, a debate team's arguments, a company's market muscle.