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A shield is a device used for defense;

It blocks incoming attacks, evading blows.

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A weapon is a device used for offense;

It performs attacks, which may be blocked by a shield.

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Shields and weapons are not interchangeable.

A shield is not a weapon.

A weapon is not a shield.

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When a weapon is used preemptively,

We call it aggression.

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In the face of aggression,

A weapon used as a shield,

Is called

Revenge.

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It may be right,

It may be justified,

But it will never keep you safe.

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Nuclear deterrent.

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A fine weapon,

But a poor excuse for a shield.

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