戦力
せんりょく · senryoku · JLPT N1 · noun
potential
⚔️ 戦 (war) + 力 (power) = war power: the military strength a nation can field
戦 means battle and 力 means power or strength, so the compound names the force a country could bring to a war. It is the usual term for military capacity.
力 — pictograph of a plow or arm muscle
力 originated as a pictograph of an ancient plow, the main tool requiring physical exertion in early agriculture. Some scholars also see it as a flexed arm showing muscle. From this concrete image it broadened to mean 'strength, power, force, effort'.