The M9 Bayonet is a multi-purpose knife and bayonet officially adopted in 1984 by the U.S. Army. It has a 7-inch blade and is issued with a sheath designed to double as a wire cutter. The M9 ...

Shell-loading by hand is a slow, delicate process in which molten TNT is poured, cooled, hardened, and packed into shells a little at a time to prevent formation of air cavities that may cause ...