A mutual destruction.
This term was not uncommon on the battlefield, especially after Charlemagne implemented the institutionalized and normalized suicide attacks and suicide weapons, the pathological phenomenon of "special attack" had long become a part of the daily battlefield. From the sky to the ground, various "human bombs" were constantly bursting into flowers of death.
Just like any phenomenon that appears on an abnormally large scale, it brings a sensory shock. The term "a mutual destruction" no longer appeared as an individual form or abstract concept, but in the form of the lives of tens of thousands of people and the destruction of huge buildings, which immediately brought shivers and chills along with an understanding of the situation, sweeping through the soldiers on both sides of the front.
Fortress against fortress, cannon against cannon.
Tooth for a tooth, blood for blood.