Parameters Winter 2025–26; On Lethality: Toward a More Complete Definition and Formation of the Lethality Framework by John M. Hinck, Robert S. Hinck, Jayson A. Altieri, and David R. Jarnot; Background image: US soldiers assigned to the 25th Combat Aviation Brigade qualify on the M4 Carbine at Schofield Barracks, Hawaii. US Army photo by Sergeant Olivia Cowart on DVIDS (https://www.dvidshub.net/image/9346280/25th-cab-conducts-m4-qualifications).