No person is irreplaceable, and weapons even less so.
Perhaps in ancient times, there existed invincible warriors and unbreakable swords, with strategies built upon their overwhelming combat prowess wherein heroes and legendary blades were deemed "irreplaceable and precious." Yet now, in the era of total war predicated on mass production and sustained consumption, a time in which everything's value is digitized and standardized, lives have been reduced to nothing more than names, numbers, and identifiers on recruitment forms or casualty lists—and let alone the "legions" and "Sirens" manufactured from the remains of the dead.
