Rusty Bubbles
Even back then, most knew better than to bring a knife to a gunfight.
Anonymous
The equivalent of the sword was fixed bayonets, attached to the rifle.
Joseph B
A soldier could kill more people with a gun than with a sword. Further, if a person is aiming a gun at him, charging with a sword is not a bright idea.
Anonymous
Swords were designed for hand to hand combat. By WW2 the weapons had become so sophisticated, soldiers died trying to get that close.
Anonymous
Because more advanced weapons had been invented.