

Gerard credited Trevor Dupuy and his colleagues at the Historical Evaluation Research Organization (HERO) with codifying “the military appropriation of the concept” of lethality, which was defined as: “the inherent capability of a given weapon to kill personnel or make materiel ineffective in a given period, where capability includes the factors of weapon range, rate of fire, accuracy, radius of effects, and battlefield mobility.” It was kicked off by an interesting piece by Olivia Gerard in The Strategy Bridge last autumn, “ Lethality: An Inquiry.”

National Defense Strategy document, has sparked up again. It appears that discussion of the meaning of lethality, as related to the use of the term in the 2018 U.S. Marines with a M1919A4 machine gun on Roi-Namur Island in the Marshall Islands during World War II.
