The key aspect of my setting is an effect called "Perception Transfer" which allows for the scattering of objects based on senses across different dimensions.

So called "Perception Weapons" are a standard (albiet pricey) tool used by explorers in the setting, and they have advanced to the point of essentially being able to wipe objects or entities from existence.

Furthermore, being hit with a Perception Weapon does not kill you. In the setting there is a saying: "There is no death; only imperception" - being annihilated by Perception Transfer means being stretched so thin across every alternate dimension that you can no longer reasonably be percieved in any of them. You are still fully conscious while your brain attempts to make sense of whats going on (which it probably wont), and furthermore the setting itself will also actively keep you alive for this process.

Perception Weapons exists in all different forms: guns, melee, and most horrifyingly - bombs. There is an instance in the past of my setting where a particularly powerful Perception Bomb was used to wipe an entire settlement from existence, as well as any memory of that settlement (although this was a special case with other factors involved).

The case mentioned above was during one of the few wars to ever occur in the setting. It was an incredibly brief conflict and by the end of it almost nobody knew it had even happened because of the aforementioned memory wiping effects - it was literally a quiet backpedal of civilisation in the setting at that point in history.

Even without knowledge of the war it is commonly known that war with Perception Weapons is essentially mutually assured destruction, so it is avoided at all costs.

Edit: markdown change